If the head and the body are to be well, you must begin by curing the soul.

Each living creature is said to be alive and to be the same individual - as for example someone is said to be the same person from when he is a child until he comes to be an old man. And yet, if he's called the same, that's despite the fact that he's never made up from the same things, but is always being renewed, and losing what he had before, whether it's hair, or flesh, or bones, or blood, in fact the whole body.

Not every love, but only that which has a noble purpose, is noble and worthy of praise.

Time on its back bears all things far away - Full many a challenge is wrought by many a day - Shape, fortune, name, and nature all decay

But this is not difficult, O Athenians! to escape death; but it is much more difficult to avoid depravity, for it runs swifter than death. And now I, being slow and aged, am overtaken by the slower of the two; but my accusers, being strong and active, have been overtaken by the swifter, wickedness. And now I depart, condemned by you to death; but they condemned by truth, as guilty of iniquity and injustice: and I abide my sentence, and so do they. These things, perhaps, ought so to be, and I think that they are for the best.

Those who are not schooled and practised in truth [who are not honest and upright men] can never manage aright the government, nor yet can those who spend their lives as closet philosophers; because the former have no high purpose to guide their actions, while the latter keep aloof from public life.

Desires are only the lack of something: and those who have the greatest desires are in a worse condition than those who have none, or very slight ones.