Anybody can get hit over the head.

Youth should stay away from all evil, especially things that produce wickedness and ill-will.

The aim of art is to represent not the outward appearance of things, but their inward significance.

A friend to all is a friend to none.

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

These two rational faculties may be designated the Scientific Faculty and the Calculative Faculty respectively; since calculation is the same as deliberation, and deliberation is never exercised about things that are invariable, so that the Calculative Faculty is a separate part of the rational half of the soul.

Friendship is a thing most necessary to life, since without friends no one would choose to live, though possessed of all other advantages.