It was a favorite expression of Theophrastus that time was the most valuable thing that a man could spend.

The great thieves lead away the little thief.

As a matter of self-preservation, a man needs good friends or ardent enemies, for the former instruct him and the latter take him to task.

Those who have virtue always in their mouths, and neglect it in practice, are like a harp, which emits a sound pleasing to others, while itself is insensible of the music.

Why not whip the teacher when the pupil misbehaves?

I have nothing to ask but that you would remove to the other side, that you may not, by intercepting the sunshine, take from me what you cannot give.

The foundation of every state is the education of its youth.