An old man is twice a child, and so is a drunken man.

I do believe that there are gods, and in a far higher sense than that in which any of my accusers believe in them.

Now nothing can be more important than that the work of a soldier should be well done.

Geometry draws the soul towards truth.

Ignorance: the root of all evil.

The knowledge of which geometry aims is the knowledge of the eternal.

The greatest penalty of evil-doing is to grow into the likeness of bad men, and, growing like them, to fly from the conversation of the good, and be cut off from them, and cleave to and follow after the company of the bad.