All persons ought to endeavor to follow what is right, and not what is established.

A brave man is clear in his discourse, and keeps close to truth.

The angry man wishes the object of his anger to suffer in return; hatred wishes its object not to exist.

Fate of empires depends on the education of youth

It is clear, then, that wisdom is knowledge having to do with certain principles and causes. But now, since it is this knowledge that we are seeking, we must consider the following point: of what kind of principles and of what kind of causes is wisdom the knowledge?

The high-minded man does not bear grudges, for it is not the mark of a great soul to remember injuries, but to forget them.

It is possible to fail in many ways . . . while to succeed is possible only in one way (for which reason also one is easy and the other difficult - to miss the mark easy, to hit it difficult).