Wisdom of Aristotle

Source: http://www.bookrags.com/quotes/Aristotle

• "For what is the best choice, for each individual is the highest it is possible for him to achieve." —Aristotle on Achievement
• "Most people would rather give than get affection." —Aristotle on Affection
• "Anybody can become angry - that is easy; but to be angry with the right person, and to the right degree, and at the right time, and for the right purpose, and in the right way - that is not within everybody's power and is not easy." —Aristotle on Anger
• "The coward calls the brave man rash, the rash man calls him a coward." —Aristotle on Bravery
• "How God ever brings like to like." —Aristotle on Comparisons
• "The wise man does not expose himself needlessly to danger, since there are few things for which he cares sufficiently; but he is willing, in great crises, to give even his life--knowing that under certain conditions it is not worth-while to live." —Aristotle on Crisis
• "Dignity consists not in possessing honors, but in the consciousness that we deserve them." —Aristotle on Dignity
• "The roots of education are bitter, but the fruit is sweet." —Aristotle on Education
• "Those who educate children well are more to be honored than parents, for these only gave life, those the art of living well." —Aristotle on Education
• "All who have meditated on the art of governing mankind have been convinced that the fate of empires depends on the education of youth." —Aristotle on Education
• "The educated differ from the uneducated as much as the living from the dead." —Aristotle on Education
• "The roots of education are bitter, but the fruit is sweet. -Aristotle." —Aristotle on Education
• "Education is an ornament in prosperity and a refuge in adversity." —Aristotle on Education
• "Equality consists in the same treatment of similar persons." —Aristotle on Equality
• "We are what we repeatedly do. Excellence then is not an act but a habit." —Aristotle on Excellence
• "A friend is a second self." —Aristotle on Friendship
• "Friendship is a single soul dwelling in two bodies." —Aristotle on Friendship
• "There is no great genius without a mixture of madness. " —Aristotle on Genius
• "No great genius is without an admixture of madness." —Aristotle on Genius
• "There are some who, because the point is the limit and extreme of the line, the line of the plane, and the plane of the solid, think there must be real things of this sort." —Aristotle on Geometry
• "Man is a goal seeking animal. His life only has meaning if he is reaching out and striving for his goals." —Aristotle on Goals
• "It is easy to perform a good action, but not easy to acquire a settled habit of performing such actions." —Aristotle on Goodness
• "It is well to be up before daybreak, for such habits contribute to health, wealth, and wisdom." —Aristotle on Habits
• "To live happily is an inward power of the soul. -Aristotle." —Aristotle on Happiness
• "Hope is a waking dream." —Aristotle on Hope
• "Of mankind in general, the parts are greater than the whole." —Aristotle on Humanity
• "Wit is cultured insolence." —Aristotle on Humor
• "It is not once nor twice but times without number that the same ideas make their appearance in the world." —Aristotle on Ideas
• "If at first the idea is absurd, then there is no hope for it." —Aristotle on Ideas
• "You ask me if I keep a notebook to record my great ideas. I've only ever had one." —Aristotle on Ideas
• "No excellent soul is exempt from a mixture of madness." —Aristotle on Insanity
• "Justice is that virtue of the soul which is distributive according to desert." —Aristotle on Justice
• "The price of justice is eternal publicity." —Aristotle on Justice
• "What we have to learn to do, we learn by doing." —Aristotle on Learning
• "We give up leisure in order that we may have leisure, just as we go to war in order that we may have peace." —Aristotle on Leisure
• "The end of labor is to gain leisure." —Aristotle on Leisure
• "We give up leisure in order that we may have leisure, just as we go to war in order that we may have peace." —Aristotle on Leisure
• "The goal of war is peace, of business, leisure." —Aristotle on Leisure
• "There is a cropping-time in the races of men, as in the fruits of the field; and sometimes, if the stock be good, there springs up for a time a succession of splendid men; and then comes a period of barrenness." —Aristotle on Life
• "The mathematical sciences particularly exhibit order, symmetry, and limitation; and these are the greatest forms of the beautiful." —Aristotle on Mathematics
• "The greatest thing in style is to have a command of metaphor." —Aristotle on Metaphors
• "And of course, the brain is not responsible for any of the sensations at all. The correct view is that the seat and source of sensation is the region of the heart. -Aristotle." —Aristotle on Miscellaneous
• "It is better to rise from life as from a banquet -- neither thirsty nor drunken." —Aristotle on Moderation
• "The moral virtues, then, are produced in us neither by nature nor against nature. Nature, indeed, prepares in us the ground for their reception, but their complete formation is the product of habit." —Aristotle on Morals
• "This is the reason why mothers are more devoted to their children than fathers: it is that they suffer more in giving them birth and are more certain that they are their own." —Aristotle on Mothers
• "No one finds fault with defects which are the result of nature." —Aristotle on Nature
• "A good style must have an air of novelty, at the same time concealing its art." —Aristotle on Novelty
• "The whole is more than the sum of its parts." —Aristotle on Numbers
• "Numbers are intellectual witnesses that belong only to mankind." —Aristotle on Numbers
• "Wicked men obey from fear; good men, from love." —Aristotle on Obedience
• "Some men are just as sure of the truth of their opinions as are others of what they know." —Aristotle on Opinions
• "A Delphic sword." —Aristotle on Oracle
• "Therefore Agathon rightly says: "Of this alone even God is deprived, the power of making things that are past never to have been."" —Aristotle on Past
• "Philosophy is the science which considers truth." —Aristotle on Philosophy
• "The aim of the wise is not to secure pleasure, but to avoid pain." —Aristotle on Pleasure
• "It is Homer who has chiefly taught other poets the art of telling lies skillfully." —Aristotle on Poetry
• "Man is by nature a civic animal." —Aristotle on Politics
• "Democracy is when the indigent, and not the men of property, are the rulers." —Aristotle on Politics Government
• "Probable impossibilities are to be preferred to improbable possibilities." —Aristotle on Possibilities
• "To Thales the primary question was not what do we know, but how do we know it." —Aristotle on Questions
• "Wishing to be friends is quick work, but friendship is a slow-ripening fruit." —Aristotle on Quick
• "Youth is easily deceived because it is quick to hope." —Aristotle on Quick
• "Bad men are full of repentance." —Aristotle on Repentance
• "Revolutions are not about trifles, but spring from trifles." —Aristotle on Revolution
• "Revolutions are not trifles, but spring from trifles." —Aristotle on Revolution
• "The greatest virtues are those which are most useful to other persons. -Aristotle." —Aristotle on Service
• "The ideal man is his own best friend and takes delight in privacy." —Aristotle on Silence
• "Suffering becomes beautiful when anyone bears great calamities with cheerfulness, not through insensibility but through greatness of mind." —Aristotle on Suffering
• "The ultimate value of life depends upon awareness, and the power of contemplation rather than upon mere survival." —Aristotle on Survival
• "One swallow does not make spring." —Aristotle on Swallows
• "Great men are always of a nature originally melancholy." —Aristotle on Temperment
• "I count him braver who overcomes his desires than him who conquers his enemies; for the hardest victory is over self." —Aristotle on Victory
• "The greatest virtues are those which are most useful to other persons." —Aristotle on Virtue
• "Happiness is the utilization of one's talents along lines of excellence." —Aristotle on Volunteerism
• "Wit is educated insolence." —Aristotle on Wit
• "Humor is the only test of gravity, and gravity of humor; for a subject which will not bear raillery is suspicious, and a jest which will not bear serious examination is false wit." —Aristotle on Wit
• "It was through the feeling of wonder that men now and at first began to philosophize." —Aristotle on Wonder

• He who has overcome his fears will truly be free.
• Variant: I count him braver who overcomes his desires than him who overcomes his enemies.
• Quoted in Florilegium by Joannes Stobaeus
• In all things of nature there is something of the marvelous.
• Parts of Animals I.645a16
• Concerning the generation of animals akin to them, as hornets and wasps, the facts in all cases are similar to a certain extent, but are devoid of the extraordinary features which characterize bees; this we should expect, for they have nothing divine about them as the bees have.
• Generation of Animals III.761a2
• Misfortune shows those who are not really friends.
• Eudemian Ethics VII.1238a20
• Time crumbles things; everything grows old under the power of Time and is forgotten through the lapse of Time.
• Physics

• Rhetoric

• It is absurd to hold that a man ought to be ashamed of being unable to defend himself with his limbs but not of being unable to defend himself with speech and reason, when the use of reason is more distinctive of a human being than the use of his limbs. (I.1355b1)
• Evils draw men together. (I.1362b39)
• (quoting a proverb)
• Thus every action must be due to one or other of seven causes: chance, nature, compulsion, habit, reasoning, anger, or appetite. (I.1369a5)
• Variant: All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion and desire.
• The young have exalted notions, because they have not been humbled by life or learned its necessary limitations; moreover, their hopeful disposition makes them think themselves equal to great things" and that means having exalted notions. They would always rather do noble deeds than useful ones: Their lives are regulated more by moral feeling than by reasoning.... All their mistakes are in the direction of doing things excessively and vehemently. They overdo everything; they love too much, hate too much, and the same with everything else. (II.1389a31)
• Wit is well-bred insolence. (II.1389b11)
• It is simplicity that makes the uneducated more effective than the educated when addressing popular audiences. (II.1395b27)

• Politics

• Man is by nature a political animal. (I.1253a2)
• Variant: Man is an animal whose nature it is to live in a polis. (H.D.F. Kitto, The Greeks)
• Nature does nothing uselessly. (I.1253a8)
• He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god. (I.1253a27)
• Man, when perfected, is the best of animals, but when separated from law and justice, he is the worst of all. (I.1253a31)
• Money was intended to be used in exchange, but not to increase at interest. And this term interest, which means the birth of money from money, is applied to the breeding of money because the offspring resembles the parent. Wherefore of all modes of getting wealth this is the most unnatural. (I.1258b4)
• Men ... are easily induced to believe that in some wonderful manner everybody will become everybody's friend, especially when some one is heard denouncing the evils now existing in states, suits about contracts, convictions for perjury, flatteries of rich men and the like, which are said to arise out of the possession of private property. These evils, however, are due to a very different cause�"the wickedness of human nature. (II.1263b15)
• It is of the nature of desire not to be satisfied, and most men live only for the gratification of it. (II.1267b4)
• Again, men in general desire the good, and not merely what their fathers had. (II.1269a4)
• Even when laws have been written down, they ought not always to remain unaltered. (II.1269a9)
• That judges of important causes should hold office for life is a disputable thing, for the mind grows old as well as the body. (II.1270b39)
• They should rule who are able to rule best. (II.1273b5)
• The good citizen need not of necessity possess the virtue which makes a good man. (III.1276b34)
• A state is not a mere society, having a common place, established for the prevention of mutual crime and for the sake of exchange.... Political society exists for the sake of noble actions, and not of mere companionship. (III.1280b30, 1281a3)
• The law is reason unaffected by desire. (III.1287a32)
• Quoted in Legally Blonde as "The law is reason free from passion."
• If liberty and equality, as is thought by some, are chiefly to be found in democracy, they will be best attained when all persons alike share in the government to the utmost. (IV.1291b34)
• Inferiors revolt in order that they may be equal, and equals that they may be superior. Such is the state of mind which creates revolutions. (V.1302a29)
• Well begun is half done. (V.1303b30)
• (quoting a proverb)
• Both oligarch and tyrant mistrust the people, and therefore deprive them of their arms. (V.1311a11)
• A tyrant must put on the appearance of uncommon devotion to religion. Subjects are less apprehensive of illegal treatment from a ruler whom they consider god-fearing and pious. On the other hand, they do less easily move against him, believing that he has the gods on his side. (V.1314b39)
• The basis of a democratic state is liberty. (VI.1317a40)
• Happiness, whether consisting in pleasure or virtue, or both, is more often found with those who are highly cultivated in their minds and in their character, and have only a moderate share of external goods, than among those who possess external goods to a useless extent but are deficient in higher qualities. (VII.1323b1)
• Law is order, and good law is good order. (VII.1326a29)
• Let us then enunciate the functions of a state and we shall easily elicit what we want: First there must be food; secondly, arts, for life requires many instruments; thirdly, there must be arms, for the members of a community have need of them, and in their own hands, too, in order to maintain authority both against disobedient subjects and against external assailants.... (VII.1328b4)
• The appropriate age for marriage is around eighteen for girls and thirty-seven for men. (VII.1335a27)

• Metaphysics

• All men by nature desire to know. An indication of this is the delight we take in our senses; for even apart from their usefulness they are loved for themselves; and above all others the sense of sight. For not only with a view to action, but even when we are not going to do anything, we prefer sight to almost everything else. The reason is that this, most of all the senses, makes us know and brings to light many differences between things. (I.980a21)
• Variant: All men by nature desire knowledge...
• The first sentence is in the Oxford Dictionary of Scientific Quotations (2005), 21:10.
• If, then, God is always in that good state in which we sometimes are, this compels our wonder; and if in a better this compels it yet more. And God is in a better state. And life also belongs to God; for the actuality of thought is life, and God is that actuality; and God's self-dependent actuality is life most good and eternal. (XII.1072b24)
• Those who assert that the mathematical sciences say nothing of the beautiful or the good are in error. For these sciences say and prove a great deal about them; if they do not expressly mention them, but prove attributes which are their results or definitions, it is not true that they tell us nothing about them. The chief forms of beauty are order and symmetry and definiteness, which the mathematical sciences demonstrate in a special degree. (XIII.1078a33)

• Nicomachean Ethics (c. 325 BC)

• If there is some end of the things we do, which we desire for its own sake, clearly this must be the good. Will not knowledge of it, then, have a great influence on life? Shall we not, like archers who have a mark to aim at, be more likely to hit upon what we should? If so, we must try, in outline at least, to determine what it is. (I.1094a18)
• It is the mark of an educated man to look for precision in each class of things just so far as the nature of the subject admits; it is evidently equally foolish to accept probable reasoning from a mathematician and to demand from a rhetorician scientific proofs. (I.1094b24)
• The life of money-making is one undertaken under compulsion, and wealth is evidently not the good we are seeking; for it is merely useful and for the sake of something else. (I.1096a5)
• Piety requires us to honor truth above our friends. (I.1096a16)
• For just as for a flute-player, a sculptor, or an artist, and, in general, for all things that have a function or activity, the good and the well is thought to reside in the function, so would it seem to be for man, if he has a function. (I.1097b25)
• If ... we state the function of man to be a certain kind of life, and this to be an activity or actions of the soul implying a rational principle, and the function of a good man to be the good and noble performance of these, and if any action is well performed when it is performed in accordance with the appropriate excellence ... human good turns out to be activity of the soul in accordance with virtue, and if there are more than one virtue, in accordance with the best and most complete. (I.1098a13)
• One swallow does not make a summer, nor does one day; and so too one day, or a short time, does not make a man blessed and happy. (I.1098a18)
• For some identify happiness with virtue, some with practical wisdom, others with a kind of philosophic wisdom, others with these, or one of these, accompanied by pleasure or not without pleasure; while others include also external prosperity. Now ... it is not probable that these should be entirely mistaken, but rather that they should be right in at least some one respect or even in most respects. (I.1098b23)
• For pleasure is a state of soul, and to each man that which he is said to be a lover of is pleasant.... Now for most men their pleasures are in conflict with one another because these are not by nature pleasant, but the lovers of what is noble find pleasant the things that are by nature pleasant; and virtuous actions are such... Happiness then is the best, noblest, and most pleasant thing in the world, and these attributes are not severed as in the inscription at Delos: Most noble is that which is justest, and best is health; but pleasantest is it to win what we love. (I.1099a6)
• Everything that depends on the action of nature is by nature as good as it can be, and similarly everything that depends on art or any rational cause, and especially if it depends on the best of all causes. To entrust to chance what is greatest and most noble would be a very defective arrangement. (I.1099b22)
• Quoted in Oxford Dictionary of Scientific Quotations (2005), 21:8.
• For the things we have to learn before we can do, we learn by doing. (II.1103a33)
• Oxford Dictionary of Scientific Quotations (2005), 21:9.
• For legislators make the citizens good by forming habits in them, and this is the wish of every legislator, and those who do not effect it miss their mark, and it is in this that a good constitution differs from a bad one. (II.1103b4)
• It is well said, then, that it is by doing just acts that the just man is produced, and by doing temperate acts the temperate man; without doing these no one would have even a prospect of becoming good. But most people do not do these, but take refuge in theory and think they are being philosophers and will become good in this way, behaving somewhat like patients who listen attentively to their doctors, but do none of the things they are ordered to do. (II.1105b9)
• Again, it is possible to fail in many ways (for evil belongs to the class of the unlimited ... and good to that of the limited), while to succeed is possible only in one way (for which reason also one is easy and the other difficult�"to miss the mark easy, to hit it difficult); for these reasons also, then, excess and defect are characteristic of vice, and the mean of virtue; For men are good in but one way, but bad in many. (II.1106b28)
• The vices respectively fall short of or exceed what is right in both passions and actions, while virtue both finds and chooses that which is intermediate. (II.1107a4)
• Variant: Some vices miss what is right because they are deficient, others because they are excessive, in feelings or in actions, while virtue finds and chooses the mean.
• In cases of this sort, let us say adultery, rightness and wrongness do not depend on committing it with the right woman at the right time and in the right manner, but the mere fact of committing such action at all is to do wrong. (II.1107a15)
• Any one can get angry that is easy or give or spend money; but to do this to the right person, to the right extent, at the right time, with the right motive, and in the right way, that is not for every one, nor is it easy. (II.1109a27)
• We must as second best, as people say, take the least of the evils. (II.1109a34)
• Without friends no one would choose to live, though he had all other goods. (VIII.1155a5)
• When people are friends, they have no need of justice, but when they are just, they need friendship in addition. (VIII.1155a26)
• After these matters we ought perhaps next to discuss pleasure. For it is thought to be most intimately connected with our human nature, which is the reason why in educating the young we steer them by the rudders of pleasure and pain; it is thought, too, that to enjoy the things we ought and to hate the things we ought has the greatest bearing on virtue of character. For these things extend right through life, with a weight and power of their own in respect both to virtue and to the happy life, since men choose what is pleasant and avoid what is painful; and such things, it will be thought, we should least of all omit to discuss, especially since they admit of much dispute. (X.1172a17)
• And happiness is thought to depend on leisure; for we are busy that we may have leisure, and make war that we may live in peace. (X.1177b4)
• Now the activity of the practical virtues is exhibited in political or military affairs, but the actions concerned with these seem to be unleisurely. Warlike actions are completely so (for no one chooses to be at war, or provokes war, for the sake of being at war; any one would seem absolutely murderous if he were to make enemies of his friends in order to bring about battle and slaughter); but the action of the statesman is also unleisurely, and-apart from the political action itself-aims at despotic power and honours, or at all events happiness, for him and his fellow citizens-a happiness different from political action, and evidently sought as being different. So if among virtuous actions political and military actions are distinguished by nobility and greatness, and these are unleisurely and aim at an end and are not desirable for their own sake, but the activity of reason, which is contemplative, seems both to be superior in serious worth and to aim at no end beyond itself, and to have its pleasure proper to itself (and this augments the activity), and the self-sufficiency, leisureliness, unweariedness (so far as this is possible for man), and all the other attributes ascribed to the supremely happy man are evidently those connected with this activity, it follows that this will be the complete happiness of man, if it be allowed a complete term of life. (X.1177b6)
• Life in the true sense is perceiving or thinking.
• To be conscious that we are perceiving or thinking is to be conscious of our own existence.
• With regard to excellence, it is not enough to know, but we must try to have and use it.
• Young people are in a condition like permanent intoxication, because youth is sweet and they are growing.

• Poetics

• A tragedy, then, is the imitation of an action ... with incidents arousing pity and fear, wherewith to accomplish its catharsis of such emotions. (1449b24)
• A whole is that which has beginning, middle, and end. (1450b26)
• Poetry is finer and more philosophical than history; for poetry expresses the universal, and history only the particular. (1451b6)
• Poetry demands a man with a special gift for it, or else one with a touch of madness in him. (1455a33)
• But the greatest thing by far is to have a command of metaphor. This alone cannot be imparted by another; it is the mark of genius, for to make good metaphors implies an eye for resemblances. (1459a4)
• Homer has taught all other poets the art of telling lies skillfully. (1460a19)
• Variant: It is Homer who has chiefly taught other poets the art of telling lies skillfully.
• For the purposes of poetry a convincing impossibility is preferable to an unconvincing possibility. (1461b11)

• Lives of Eminent Philosophers

• by Diogenes Laërtius, quoting assertions attributed to Aristotle

• Education is the best provision for old age.
• Hope is a waking dream.
• I have gained this by philosophy: that I do without being commanded what others do only from fear of the law.
• Liars when they speak the truth are not believed.
• To the query, "What is a friend?" his reply was "A single soul dwelling in two bodies."
• Variants: Friendship is a single soul dwelling in two bodies.
• A true friend is one soul in two bodies.
• Love is composed of a single soul inhabiting two bodies.
• What is a friend? A single soul dwelling in two bodies.

• Unsourced

• A friend is a second self.
• A great city is not to be confounded with a populous one.
• All paid jobs absorb and degrade the mind.
• All persons ought to endeavor to follow what is right, and not what is established.
• All virtue is summed up in dealing justly.
• Bad men are full of repentance.
• Bashfulness is an ornament to youth, but a reproach to old age.
• Bring your desires down to your present means. Increase them only when your increased means permit.
• Change in all things is sweet.
• Courage is the first of human qualities because it is the quality which guarantees the others.
• Democracy arises out of the notion that those who are equal in any respect are equal in all respects; because men are equally free, they claim to be absolutely equal.
• Democracy is when the indigent, and not the men of property, are the rulers.
• Different men seek after happiness in different ways and by different means, and so make for themselves different modes of life and forms of government.
• Dignity does not consist in possessing honors, but in deserving them.
• Variants: Dignity does not come in possessing honors, but in deserving them.
• Dignity consists not in possessing honors, but in the consciousness that we deserve them.
• Education is an ornament in prosperity and a refuge in adversity.
• Equality consists in the same treatment of similar persons.
• Fear is pain arising from the anticipation of evil.
• For the things we have to learn before we can do them, we learn by doing them.
• For what is the best choice, for each individual is the highest it is possible for him to achieve.
• Friendship is essentially a partnership.
• Great men are always of a nature originally melancholy.
• Happiness depends upon ourselves.
• Happiness is a sort of action.
• Humor is the only test of gravity, and gravity of humor; for a subject which will not bear raillery is suspicious, and a jest which will not bear serious examination is false wit.
• If one way be better than another, that you may be sure is nature's way.
• In a democracy the poor will have more power than the rich, because there are more of them, and the will of the majority is supreme.
• In modern times there are opposing views about the practice of education. There is no general agreement about what the young should learn either in relation to virtue or in relation to the best life; nor is it clear whether their education ought to be directed more towards the intellect than towards the character of the soul.... And it is not certain whether training should be directed at things useful in life, or at those conducive to virtue, or at non-essentials.... And there is no agreement as to what in fact does tend towards virtue. Men do not all prize most highly the same virtue, so naturally they differ also about the proper training for it.
• In nine cases out of ten, a woman had better show more affection than she feels.
• In poverty and other misfortunes of life, true friends are a sure refuge. The young they keep out of mischief; to the old they are a comfort and aid in their weakness, and those in the prime of life they incite to noble deeds.
• In the arena of human life the honours and rewards fall to those who show their good qualities.
• It is best to rise from life as from a banquet, neither thirsty nor drunken.
• It is easy to perform a good action, but not easy to acquire a settled habit of performing such actions.
• It is in justice that the ordering of society is centered.
• It is just that we should be grateful, not only to those with whose views we may agree, but also to those who have expressed more superficial views; for these also contributed something, by developing before us the powers of thought.
• It is not once nor twice but times without number that the same ideas make their appearance in the world.
• It is the mark of an educated mind to be able to entertain a thought without accepting it.
• It is unbecoming for young men to utter maxims.
• Melancholic men are of all others the most witty.
• Men acquire a particular quality by constantly acting a particular way... you become just by performing just actions, temperate by performing temperate actions, brave by performing brave actions.
• Variant: Moral excellence comes about as a result of habit. We become just by doing just acts, temperate by doing temperate acts, brave by doing brave acts.
• Men create gods after their own image, not only with regard to their form but with regard to their mode of life.
• Most people would rather give than get affection.
• Mothers are fonder than fathers of their children because they are more certain they are their own.
• Variant: This is the reason why mothers are more devoted to their children than fathers: it is that they suffer more in giving them birth and are more certain that they are their own.
• My best friend is the man who in wishing me well wishes it for my sake.
• Variant: The best friend is the man who in wishing me well wishes it for my sake.
• No excellent soul is exempt from a mixture of madness.
• Variants: No great genius has ever existed without some touch of madness.
• There is no great genius without a mixture of madness.
• There was never a genius without a tincture of madness.
• No notice is taken of a little evil, but when it increases it strikes the eye.
• Of all the varieties of virtues, liberalism is the most beloved.
• Personal beauty is a greater recommendation than any letter of reference.
• Pleasure in the job puts perfection in the work.
• Politicians also have no leisure, because they are always aiming at something beyond political life itself, power and glory, or happiness.
• Poverty is the parent of revolution and crime.
• Republics decline into democracies and democracies degenerate into despotisms.
• Strange that the vanity which accompanies beauty excusable, perhaps, when there is such great beauty, or at any rate understandable should persist after the beauty was gone.
• Suffering becomes beautiful when anyone bears great calamities with cheerfulness, not through insensibility but through greatness of mind.
• That in the soul which is called the mind is, before it thinks, not actually any real thing.
• The aim of art is to represent not the outward appearance of things, but their inward significance.
• The aim of the wise is not to secure pleasure, but to avoid pain.
• The complete is more than the sum of its pieces.
• Variant: The whole is greater than the sum of its parts.
• The educated differ from the uneducated as much as the living from the dead.
• The generality of men are naturally apt to be swayed by fear rather than reverence, and to refrain from evil rather because of the punishment that it brings than because of its own foulness.
• Variant: Men are swayed more by fear than by reverence.
• The gods too are fond of a joke.
• The good of man must be the end of the science of politics.
• The greatest virtues are those which are most useful to other persons.
• The ideal man bears the accidents of life with dignity and grace, making the best of circumstances.
• The least initial deviation from the truth is multiplied later a thousandfold.
• The moral virtues, then, are produced in us neither by nature nor against nature. Nature, indeed, prepares in us the ground for their reception, but their complete formation is the product of habit.
• The more thou dost advance, the more thy feet pitfalls will meet. The Path that leadeth on is lighted by one fire the light of daring burning in the heart. The more one dares, the more he shall obtain. The more he fears, the more that light shall pale and that alone can guide.
• The most perfect political community is one in which the middle class is in control, and outnumbers both of the other classes.
• The one exclusive sign of thorough knowledge is the power of teaching.
• The only stable state is the one in which all men are equal before the law.
• The roots of education are bitter, but the fruit is sweet.
• The secret to humor is surprise.
• The soul never thinks without a picture.
• The ultimate value of life depends upon awareness and the power of contemplation rather than upon mere survival.
• The virtue of justice consists in moderation, as regulated by wisdom.
• The wise man does not expose himself needlessly to danger, since there are few things for which he cares sufficiently; but he is willing, in great crises, to give even his life knowing that under certain conditions it is not worthwhile to live.
• The worst form of inequality is to try to make unequal things equal.
• Those who educate children well are more to be honored than parents, for these only gave life, those the art of living well.
• Those who excel in virtue have the best right of all to rebel, but then they are of all men the least inclined to do so.
• Thou wilt find rest from vain fancies if thou doest every act in life as though it were thy last.
• To give a satisfactory decision as to the truth it is necessary to be rather an arbitrator than a party to the dispute.
• To perceive is to suffer.
• To run away from trouble is a form of cowardice and, while it is true that the suicide braves death, he does it not for some noble object but to escape some ill.
• We become just by performing just action, temperate by performing temperate actions, brave by performing brave action.
• We must no more ask whether the soul and body are one than ask whether the wax and the figure impressed on it are one.
• Wisdom is the reward you get for a lifetime of listening when you'd rather have been talking.
• What it lies in our power to do, it lies in our power not to do.
• What the statesman is most anxious to produce is a certain moral character in his fellow citizens, namely a disposition to virtue and the performance of virtuous actions.
• Wicked men obey from fear; good men, from love.
• Wishing to be friends is quick work, but friendship is a slow ripening fruit.
• You will never do anything in this world without courage. It is the greatest quality of the mind next to honor.
• Youth is easily deceived because it is quick to hope.
• The trade of the petty usurer is hated with most reason: it makes a profit from currency itself, instead of making it from the process which currency was meant to serve. Their common characteristic is obviously their sordid avarice.
• The greatest crimes are not those committed for the sake of necessity but those committed for the sake of superfluity. One does not become a tyrant to avoid exposure to the cold.

From Wikipedia

He who has overcome his fears will truly be free.
Variant: I count him braver who overcomes his desires than him who overcomes his enemies.
Quoted in Florilegium by Joannes Stobaeus

In all things of nature there is something of the marvelous.
Parts of Animals I.645a16

We should venture on the study of every kind of animal without distaste; for each and all will reveal to us something natural and something beautiful.
Parts of Animals I.645a21

Nature flies from the infinite, for the infinite is unending or imperfect, and Nature ever seeks amend.
Generation of Animals I.715b15

Concerning the generation of animals akin to them, as hornets and wasps, the facts in all cases are similar to a certain extent, but are devoid of the extraordinary features which characterize bees; this we should expect, for they have nothing divine about them as the bees have.
Generation of Animals III.761a2

Just as it sometimes happens that deformed offspring are produced by deformed parents, and sometimes not, so the offspring produced by a female are sometimes female, sometimes not, but male, because the female is as it were a deformed male.

Generation of Animals as translated by Arthur Leslie Peck (1943), p. 175

Misfortune shows those who are not really friends.
Eudemian Ethics VII.1238a20

Time crumbles things; everything grows old under the power of Time and is forgotten through the lapse of Time.
Physics

[edit] Rhetoric

It is absurd to hold that a man ought to be ashamed of being unable to defend himself with his limbs but not of being unable to defend himself with speech and reason, when the use of reason is more distinctive of a human being than the use of his limbs. (I.1355b1)

Evils draw men together. (I.1362b39)
(quoting a proverb)

Thus every action must be due to one or other of seven causes: chance, nature, compulsion, habit, reasoning, anger, or appetite. (I.1369a5)
Variant: All human actions have one or more of these seven causes: chance, nature, compulsions, habit, reason, passion and desire

The young have exalted notions, because they have not been humbled by life or learned its necessary limitations; moreover, their hopeful disposition makes them think themselves equal to great things—and that means having exalted notions. They would always rather do noble deeds than useful ones: Their lives are regulated more by moral feeling than by reasoning.... All their mistakes are in the direction of doing things excessively and vehemently. They overdo everything; they love too much, hate too much, and the same with everything else. (II.1389a31)

Wit is well-bred insolence. (II.1389b11)

It is simplicity that makes the uneducated more effective than the educated when addressing popular audiences. (II.1395b27)

[edit] Politics

Politics

Man is by nature a political animal. (I.1253a2)
Variant: Man is an animal whose nature it is to live in a polis. (H.D.F. Kitto, The Greeks)

Nature does nothing uselessly. (I.1253a8)

Further, the state is by nature clearly prior to the family and to the individual, since the whole is of necessity prior to the part; for example, if the whole body be destroyed, there will be no foot or hand, except in an equivocal sense, as we might speak of a stone hand; for when destroyed the hand will be no better than that. But things are defined by their working and power; and we ought not to say that they are the same when they no longer have their proper quality, but only that they have the same name.

The proof that the state is a creation of nature and prior to the individual is that the individual, when isolated, is not self-sufficing; and therefore he is like a part in relation to the whole.

He who is unable to live in society, or who has no need because he is sufficient for himself, must be either a beast or a god. (I.1253a27)

Man, when perfected, is the best of animals, but when separated from law and justice, he is the worst of all. (I.1253a31)

Money was intended to be used in exchange, but not to increase at interest. And this term interest, which means the birth of money from money, is applied to the breeding of money because the offspring resembles the parent. Wherefore of all modes of getting wealth this is the most unnatural. (I.1258b4)

Men ... are easily induced to believe that in some wonderful manner everybody will become everybody's friend, especially when some one is heard denouncing the evils now existing in states, suits about contracts, convictions for perjury, flatteries of rich men and the like, which are said to arise out of the possession of private property. These evils, however, are due to a very different cause—the wickedness of human nature. (II.1263b15)

It is of the nature of desire not to be satisfied, and most men live only for the gratification of it. (II.1267b4)

Again, men in general desire the good, and not merely what their fathers had. (II.1269a4)

Even when laws have been written down, they ought not always to remain unaltered. (II.1269a9)

That judges of important causes should hold office for life is a disputable thing, for the mind grows old as well as the body. (II.1270b39)

They should rule who are able to rule best. (II.1273b5)

The good citizen need not of necessity possess the virtue which makes a good man. (III.1276b34)

A state is not a mere society, having a common place, established for the prevention of mutual crime and for the sake of exchange.... Political society exists for the sake of noble actions, and not of mere companionship. (III.1280b30, 1281a3)

The law is reason unaffected by desire. (III.1287a32)
Variant: The Law is reason free from passion.

If liberty and equality, as is thought by some, are chiefly to be found in democracy, they will be best attained when all persons alike share in the government to the utmost. (IV.1291b34)

Inferiors revolt in order that they may be equal, and equals that they may be superior. Such is the state of mind which creates revolutions. (V.1302a29)

Well begun is half done. (V.1303b30)
(quoting a proverb)

Both oligarch and tyrant mistrust the people, and therefore deprive them of their arms. (V.1311a11)

A tyrant must put on the appearance of uncommon devotion to religion. Subjects are less apprehensive of illegal treatment from a ruler whom they consider god-fearing and pious. On the other hand, they do less easily move against him, believing that he has the gods on his side. (V.1314b39)

The basis of a democratic state is liberty. (VI.1317a40)

Happiness, whether consisting in pleasure or virtue, or both, is more often found with those who are highly cultivated in their minds and in their character, and have only a moderate share of external goods, than among those who possess external goods to a useless extent but are deficient in higher qualities. (VII.1323b1)

Law is order, and good law is good order. (VII.1326a29)

Let us then enunciate the functions of a state and we shall easily elicit what we want: First there must be food; secondly, arts, for life requires many instruments; thirdly, there must be arms, for the members of a community have need of them, and in their own hands, too, in order to maintain authority both against disobedient subjects and against external assailants.... (VII.1328b4)

The appropriate age for marriage is around eighteen for girls and thirty-seven for men. (VII.1335a27)

It is not easy to determine the nature of music, or why anyone should have a knowledge of it.

All paid employments... absorb and degrade the mind. (VIII.1337b5)

[edit] Metaphysics

All men by nature desire to know. An indication of this is the delight we take in our senses; for even apart from their usefulness they are loved for themselves; and above all others the sense of sight. For not only with a view to action, but even when we are not going to do anything, we prefer sight to almost everything else. The reason is that this, most of all the senses, makes us know and brings to light many differences between things. (I.980a21)
Variant: All men by nature desire knowledge...
The first sentence is in the Oxford Dictionary of Scientific Quotations (2005), 21:10.

If, then, God is always in that good state in which we sometimes are, this compels our wonder; and if in a better this compels it yet more. And God is in a better state. And life also belongs to God; for the actuality of thought is life, and God is that actuality; and God's self-dependent actuality is life most good and eternal. (XII.1072b24)

Those who assert that the mathematical sciences say nothing of the beautiful or the good are in error. For these sciences say and prove a great deal about them; if they do not expressly mention them, but prove attributes which are their results or definitions, it is not true that they tell us nothing about them. The chief forms of beauty are order and symmetry and definiteness, which the mathematical sciences demonstrate in a special degree. (XIII.1078a33)

The single harmony produced by all the heavenly bodies singing and dancing together springs from one source and ends by achieving one purpose, and has rightly bestowed the name not of "disordered" but of "ordered universe" upon the whole. (399 a DE MUNDO)

[edit] Nicomachean Ethics (c. 325 BC)

If there is some end of the things we do, which we desire for its own sake, clearly this must be the good. Will not knowledge of it, then, have a great influence on life? Shall we not, like archers who have a mark to aim at, be more likely to hit upon what we should? If so, we must try, in outline at least, to determine what it is. (I.1094a18)

It is the mark of an educated man to look for precision in each class of things just so far as the nature of the subject admits; it is evidently equally foolish to accept probable reasoning from a mathematician and to demand from a rhetorician scientific proofs. (I.1094b24)

The life of money-making is one undertaken under compulsion, and wealth is evidently not the good we are seeking; for it is merely useful and for the sake of something else. (I.1096a5)

Piety requires us to honor truth above our friends. (I.1096a16)

For just as for a flute-player, a sculptor, or an artist, and, in general, for all things that have a function or activity, the good and the well is thought to reside in the function, so would it seem to be for man, if he has a function. (I.1097b25)

If ... we state the function of man to be a certain kind of life, and this to be an activity or actions of the soul implying a rational principle, and the function of a good man to be the good and noble performance of these, and if any action is well performed when it is performed in accordance with the appropriate excellence ... human good turns out to be activity of the soul in accordance with virtue, and if there are more than one virtue, in accordance with the best and most complete. (I.1098a13)

One swallow does not make a summer, nor does one day; and so too one day, or a short time, does not make a man blessed and happy. (I.1098a18)

For some identify happiness with virtue, some with practical wisdom, others with a kind of philosophic wisdom, others with these, or one of these, accompanied by pleasure or not without pleasure; while others include also external prosperity. Now ... it is not probable that these should be entirely mistaken, but rather that they should be right in at least some one respect or even in most respects. (I.1098b23)

For pleasure is a state of soul, and to each man that which he is said to be a lover of is pleasant.... Now for most men their pleasures are in conflict with one another because these are not by nature pleasant, but the lovers of what is noble find pleasant the things that are by nature pleasant; and virtuous actions are such... Happiness then is the best, noblest, and most pleasant thing in the world, and these attributes are not severed as in the inscription at Delos: Most noble is that which is justest, and best is health; but pleasantest is it to win what we love. (I.1099a6)

Everything that depends on the action of nature is by nature as good as it can be, and similarly everything that depends on art or any rational cause, and especially if it depends on the best of all causes. To entrust to chance what is greatest and most noble would be a very defective arrangement. (I.1099b22)
Quoted in Oxford Dictionary of Scientific Quotations (2005), 21:8.

The truly good and wise man will bear all kinds of fortune in a seemly way, and will always act in the noblest manner that the circumstances allow. (I.1101a)

May not we then confidently pronounce that man happy who realizes complete goodness in action, and is adequately furnished with external goods? Or should we add, that he must also be destined to go on living not for any casual period but throughout a complete lifetime in the same manner, and to die accordingly, because the future is hidden from us, and we conceive happiness as an end, something utterly and absolutely final and complete? If this is so, we shall pronounce those of the living who possess and are destined to go on possessing the good things we have specified to be supremely blessed, though on the human scale of bliss. (I.1101a10)

For the things we have to learn before we can do, we learn by doing. (II.1103a33)
Oxford Dictionary of Scientific Quotations (2005), 21:9.

For legislators make the citizens good by forming habits in them, and this is the wish of every legislator, and those who do not effect it miss their mark, and it is in this that a good constitution differs from a bad one. (II.1103b4)

It is well said, then, that it is by doing just acts that the just man is produced, and by doing temperate acts the temperate man; without doing these no one would have even a prospect of becoming good. But most people do not do these, but take refuge in theory and think they are being philosophers and will become good in this way, behaving somewhat like patients who listen attentively to their doctors, but do none of the things they are ordered to do. (II.1105b9)

Again, it is possible to fail in many ways (for evil belongs to the class of the unlimited ... and good to that of the limited), while to succeed is possible only in one way (for which reason also one is easy and the other difficult—to miss the mark easy, to hit it difficult); for these reasons also, then, excess and defect are characteristic of vice, and the mean of virtue; For men are good in but one way, but bad in many. (II.1106b28)

The vices respectively fall short of or exceed what is right in both passions and actions, while virtue both finds and chooses that which is intermediate. (II.1107a4)
Variant: Some vices miss what is right because they are deficient, others because they are excessive, in feelings or in actions, while virtue finds and chooses the mean.

In cases of this sort, let us say adultery, rightness and wrongness do not depend on committing it with the right woman at the right time and in the right manner, but the mere fact of committing such action at all is to do wrong. (II.1107a15)

Any one can get angry — that is easy — or give or spend money; but to do this to the right person, to the right extent, at the right time, with the right motive, and in the right way, that is not for every one, nor is it easy. (II.1109a27)

We must as second best, as people say, take the least of the evils. (II.1109a34)

Without friends no one would choose to live, though he had all other goods. (VIII.1155a5)

When people are friends, they have no need of justice, but when they are just, they need friendship in addition. (VIII.1155a26)

After these matters we ought perhaps next to discuss pleasure. For it is thought to be most intimately connected with our human nature, which is the reason why in educating the young we steer them by the rudders of pleasure and pain; it is thought, too, that to enjoy the things we ought and to hate the things we ought has the greatest bearing on virtue of character. For these things extend right through life, with a weight and power of their own in respect both to virtue and to the happy life, since men choose what is pleasant and avoid what is painful; and such things, it will be thought, we should least of all omit to discuss, especially since they admit of much dispute. (X.1172a17)

And happiness is thought to depend on leisure; for we are busy that we may have leisure, and make war that we may live in peace. (X.1177b4)

Now the activity of the practical virtues is exhibited in political or military affairs, but the actions concerned with these seem to be unleisurely. Warlike actions are completely so (for no one chooses to be at war, or provokes war, for the sake of being at war; any one would seem absolutely murderous if he were to make enemies of his friends in order to bring about battle and slaughter); but the action of the statesman is also unleisurely, and-apart from the political action itself-aims at despotic power and honours, or at all events happiness, for him and his fellow citizens-a happiness different from political action, and evidently sought as being different. So if among virtuous actions political and military actions are distinguished by nobility and greatness, and these are unleisurely and aim at an end and are not desirable for their own sake, but the activity of reason, which is contemplative, seems both to be superior in serious worth and to aim at no end beyond itself, and to have its pleasure proper to itself (and this augments the activity), and the self-sufficiency, leisureliness, unweariedness (so far as this is possible for man), and all the other attributes ascribed to the supremely happy man are evidently those connected with this activity, it follows that this will be the complete happiness of man, if it be allowed a complete term of life. (X.1177b6)

Life in the true sense is perceiving or thinking.

To be conscious that we are perceiving or thinking is to be conscious of our own existence.

With regard to excellence, it is not enough to know, but we must try to have and use it.

Young people are in a condition like permanent intoxication, because youth is sweet and they are growing.

[edit] Poetics

A tragedy, then, is the imitation of an action ... with incidents arousing pity and fear, wherewith to accomplish its catharsis of such emotions. (1449b24)

A whole is that which has beginning, middle, and end. (1450b26)

Poetry is finer and more philosophical than history; for poetry expresses the universal, and history only the particular. (1451b6)

Poetry demands a man with a special gift for it, or else one with a touch of madness in him. (1455a33)

But the greatest thing by far is to have a command of metaphor. This alone cannot be imparted by another; it is the mark of genius, for to make good metaphors implies an eye for resemblances. (1459a4)

Homer has taught all other poets the art of telling lies skillfully. (1460a19)
Variant: It is Homer who has chiefly taught other poets the art of telling lies skillfully.

For the purposes of poetry a convincing impossibility is preferable to an unconvincing possibility. (1461b11)

[edit] Lives of Eminent Philosophers

Assertions attributed to Aristotle in Lives of Eminent Philosophers by Diogenes Laërtius

Education is the best provision for old age.

Hope is a waking dream.

I have gained this by philosophy: that I do without being commanded what others do only from fear of the law.

Liars when they speak the truth are not believed.

To the query, "What is a friend?" his reply was "A single soul dwelling in two bodies."
Variants: Friendship is a single soul dwelling in two bodies.
A true friend is one soul in two bodies.
Love is composed of a single soul inhabiting two bodies.
What is a friend? A single soul dwelling in two bodies.
To the query, in the same text, "what is love?" he replied "What is life without love? Love is like the sun; without light, there's no life" [citation needed]

[edit] Economics

"For well-being and health, again, the homestead should be airy in summer, and sunny in winter. A homestead possessing these qualities would be longer than it is deep; and its main front would face the south".
Economics (Oeconomica) 1345a.20, Greek Texts and Translations, Perseus under PhiloLogic.