The Nicomachean Ethics

One swallow does not make a summer, neither does one fine day; similarly one day or brief time of happiness does not make a person entirely happy.

For the things we have to learn before we can do them, we learn by doing them.

Without friends, no one would want to live, even if he had all other goods.

Philosophy can make people sick.

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. He is of a disposition to do men service, though he is ashamed to have a service done to him. To confer a kindness is a mark of superiority; to receive one is a mark of subordination... He does not take part in public displays... He is open in his dislikes and preferences; he talks and acts frankly, because of his contempt for men and things... He is never fired with admiration, since there is nothing great in his eyes. He cannot live in complaisance with others, except it be a friend; complaisance is the characteristic of a slave... He never feels malice, and always forgets and passes over injuries... He is not fond of talking... It is no concern of his that he should be praised, or that others should be blamed. He does not speak evil of others, even of his enemies, unless it be to themselves. His carriage is sedate, his voice deep, his speech measured; he is not given to hurry, for he is concerned about only a few things; he is not prone to vehemence, for he thinks nothing very important. A shrill voice and hasty steps come to a man through care... He bears the accidents of life with dignity and grace, making the best of his circumstances, like a skillful general who marshals his limited forces with the strategy of war... He is his own best friend, and takes delight in privacy whereas the man of no virtue or ability is his own worst enemy, and is afraid of solitude.

Freedom is obedience to self-formulated rules.

These virtues are formed in man by his doing the actions ... The good of man is a working of the soul in the way of excellence in a complete life.

Bad people...are in conflict with themselves; they desire one thing and will another, like the incontinent who choose harmful pleasures instead of what they themselves believe to be good.

The pleasures arising from thinking and learning will make us think and learn all the more. 1153a 23

The self-indulgent man craves for all pleasant things... and is led by his appetite to choose these at the cost of everything else.

The beauty of the soul shines out when a man bears with composure one heavy mischance after another, not because he does not feel them, but because he is a man of high and heroic temper.

With the truth, all given facts harmonize; but with what is false, the truth soon hits a wrong note.

We must not listen to those who advise us 'being men to think human thoughts, and being mortal to think mortal thoughts' but must put on immortality as much as possible and strain every nerve to live according to that best part of us, which, being small in bulk, yet much more in its power and honour surpasses all else.

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.

يتسائل ارسطو:في أي الحالات يكون المرء أحوج إلى الأصدقاء:أفي الرخاء !والسعادة أم في الشدة والشقاء؟وينهي أرسطو إجابته بأن الحاجة اشد إلى الصديق وقت الرخاء لان حضوره يجلب سعادة مزدوجة

Virtue lies in our power, and similarly so does vice; because where it is in our power to act, it is also in our power not to act...

Happiness does not lie in amusement; it would be strange if one were to take trouble and suffer hardship all one's life in order to amuse oneself

Even in adversity, nobility shines through, when a man endures repeated and severe misfortune with patience, not owing to insensibility but from generosity and greatness of soul.

He is happy who lives in accordance with complete virtue and is sufficiently equipped with external goods, not for some chance period but throughout a complete life.

It is the mark of an educated person to search for the same kind of clarity in each topic to the extent that the nature of the matter accepts it.

Wealth is evidently not the good we are seeking; for it is merely useful and for the sake of something else.

Happiness then, is found to be something perfect and self sufficient, being the end to which our actions are directed.

The beginning seems to be more than half of the whole.

Moral experience—the actual possession and exercise of good character—is necessary truly to understand moral principles and profitably to apply them.

There are three kinds of constitution, and an equal number of deviation-forms--perversions, as it were, of them. The constitutions are monarchy, aristocracy, and thirdly that which is based on a property qualification, which it seems appropriate to call timocratic, though most people are wont to call it polity. The best of these is monarchy, the worst timocracy. The deviation from monarchy is tyranny; for both are forms of one-man rule, but there is the greatest difference between them; the tyrant looks to his own advantage, the king to that of his subjects. For a man is not a king unless he is sufficient to himself and excels his subjects in all good things; and such a man needs nothing further; therefore he will not look to his own interests but to those of his subjects; for a king who is not like that would be a mere titular king. Now tyranny is the very contrary of this; the tyrant pursues his own good. And it is clearer in the case of tyranny that it is the worst deviation-form; but it is the contrary of the best that is worst. Monarchy passes over into tyranny; for tyranny is the evil form of one-man rule and the bad king becomes a tyrant. Aristocracy passes over into oligarchy by the badness of the rulers, who distribute contrary to equity what belongs to the city-all or most of the good things to themselves, and office always to the same people, paying most regard to wealth; thus the rulers are few and are bad men instead of the most worthy. Timocracy passes over into democracy; for these are coterminous, since it is the ideal even of timocracy to be the rule of the majority, and all who have the property qualification count as equal. Democracy is the least bad of the deviations;

How can a man know what is good or best for him, and yet chronically fail to act upon his knowledge?

What is evil neither can nor should be loved; for it is not one’s duty to be a lover of evil or to become like what is bad; and we have said that like is dear to like. Must the friendship, then, be forthwith broken off? Or is this not so in all cases, but only when one’s friends are incurable in their wickedness? If they are capable of being reformed one should rather come to the assistance of their character or their property, inasmuch as this is better and more characteristic of friendship. But a man who breaks off such a friendship would seem to be doing nothing strange; for it was not to a man of this sort that he was a friend; when his friend changed, therefore, and he is unable to save him, he gives him up.

The man who shuns and fears everything and stands up to nothing becomes a coward; the man who is afraid of nothing at all, but marches up to every danger becomes foolhardy. Similarly the man who indulges in pleasure and refrains from none becomes licentious (akolastos); but if a man behaves like a boor (agroikos) and turns his back on every pleasure, he is a case of insensibility. Thus temperance and courage are destroyed by excess and deficiency and preserved by the mean.

men cannot know each other till they have ‘eaten salt together’;

bad men... aim at getting more than their share of advantages, while in labor and public service they fall short of their share; and each man wishing for advantage to himself criticizes his neighbor and stands in his way; for if people do not watch it carefully the common weal is soon destroyed. The result is that they are in a state of faction, putting compulsion on each other but unwilling themselves to do what is just.