Aristotle

To attain any assured knowledge about the soul is one of the most difficult things in the world.

Hence poetry is something more philosophic and of graver import than history, since its statements are rather of the nature of universals, whereas those of history are singulars.

Therefore, the good of man must be the end of the science of politics.

No one loves the man whom he fears.

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.

But if nothing but soul, or in soul mind, is qualified to count, it is impossible for there to be time unless there is soul, but only that of which time is an attribute, i.e. if change can exist without soul.

Men are swayed more by fear than by reverence.

If one way be better than another, that you may be sure is nature's way.

Every art and every inquiry, and similarly every action and choice, is thought to aim at some good; and for this reason the good has rightly been declared to be that at which all things aim.

Change in all things is sweet.

Bring your desires down to your present means. Increase them only when your increased means permit.

A statement is persuasive and credible either because it is directly self-evident or because it appears to be proved from other statements that are so.

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.

Friendship is essentially a partnership.

He who hath many friends hath none.

Even when laws have been written down, they ought not always to remain unaltered.

Perfect friendship is the friendship of men who are good, and alike in excellence; for these wish well alike to each other qua good, and they are good in themselves.

The true and the approximately true are apprehended by the same faculty; it may also be noted that men have a sufficient natural instinct for what is true, and usually do arrive at the truth. Hence the man who makes a good guess at truth is likely to make a good guess at probabilities.

The young are permanently in a state resembling intoxication.

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