If I save my insight, I don't attend to weakness of eyesight.

For the poet is a light and winged and holy thing, and there is no invention in him until he has been inspired and is out of his senses, and the mind is no longer in him: when he has not attained to this state, he is powerless and is unable to utter his oracles.

Do not trouble about those who practice philosophy, whether they are good or bad; but examine the thing itself well and carefully. And if philosophy appears a bad thing to you, turn every man from it, not only your sons; but if it appears to you such as I think it to be, take courage, pursue it, and practice it, as the saying is, 'both you and your house.

Socrates should have written comics.

I am as knowledgeable as Socrates I know nothing.