He said that there was one only good, namely, knowledge; and one only evil, namely, ignorance.

An unexamined life is a life of no account.

Let us reflect in this way, too, that there is good hope that death is a blessing, for it is one of two things: either the dead are nothing and have no perception of anything, or it is, as we are told, a change and a relocation for the soul from here to another place.

Man must rise above the Earth - to the top of the atmosphere and beyond - for only thus will he fully understand the world in which he lives.

If a man comes to the door of poetry untouched by the madness of the Muses, believing that technique alone will make him a good poet, he and his sane compositions never reach perfection, but are utterly eclipsed by the performances of the inspired madman.

There is but one evil, ignorance.

Knowing thyself is the height of wisdom.