There is a ... matter - much more valuable and divine than natural philosophy . ... On this matter I must speak to you in enigmas.

. . . Then anyone who leaves behind him a written manual, and likewise anyone who receives it, in the belief that such writing will be clear and certain, must be exceedingly simple-minded. . . .

Let brother help brother.

A certain portion of mankind do not believe at all in the existence of the gods.

He is unworthy of the name of man who is ignorant of the fact that the diagonal of a square is incommensurable with its side.

No one knows whether death may not be the greatest of all blessings for a man, yet men fear it as if they knew it was the greatest of evils.

A drunkard is unprofitable for any kind of good service.