Hatreds not vowed and concealed are to be feared more than those openly declared.

A letter does not blush.

Grief is not in the nature of things, but in opinion.

For surely to be wise is the most desirable thing in all the world.

There is no grief which time does not lessen and soften.

We rejoice in the joys of our friends as much as we do our own, and we are equally grieved at their sorrows. Wherefore the wise people will feel toward their friends as they do toward themselves, and whatever labor they would encounter with a view to their own pleasure, they will encounter also for the sake of their friends.

No one can speak well, unless he thoroughly understands his subject.