There is no necessity for the man who means to be an orator to understand what is really just but only what would appear so to the majority of those who will give judgment; and not what is really good or beautiful but whatever will appear so; because persuasion comes from that and not from the truth.

Knowledge which is acquired under compulsion obtains no hold on the mind.

That a guardian should require another guardian to take care of him is ridiculous indeed.

All the gold which is under or upon the earth is not enough to give in exchange for virtue.

A house that has a library in it has a soul.

The blame is his who chooses: God is blameless.

But tell me, this physician of whom you were just speaking, is he a moneymaker, an earner of fees, or a healer of the sick?