All men have one refuge, a good friend, with whom you can weep and know that he does not smile.
Everything is destroyed by its own particular vice: the destructive power resides within. Rust destroys iron, moths destroy clothes, the worm eats away the wood; but greatest of all evils is envy, impious habitant of corrupt souls, which ever was, is, and shall be a consuming disease.
Chance is a kind of god, for it preserves many things which we do not observe.
The school of hard knocks is an accelerated curriculum.
It is not hoary hairs that bring wisdom; some have an old head on young shoulders.
Know thyself means this, that you get acquainted with what you know, and what you can do.