Are you not ashamed of heaping up the greatest amount of money and honor and reputation, and caring so little about wisdom and truth and the greatest improvement of the soul?

One who is injured ought not to return the injury, for on no account can it be right to do an injustice.

The greater the power that deigns to serve you, the more honor it demands of you.

Are not all things which have opposites generated out of their opposites?

The shortest and surest way to live with honor in the world, is to be in reality what we would appear to be, all human virtues increase and strengthen themselves by the practice and experience of them.

If I can assign names as well as pictures to objects, the right assignment of them we may call truth, and the wrong assignment of them falsehood.

A free soul ought not to pursue any study slavishly, for nothing that is learned under compulsion stays with the mind.