What most counts is not merely to live, but to live right.
The beginning of wisdom is a definition of terms.
There is but one evil, ignorance.
Be slow to fall into friendship; but when thou art in, continue firm & constant.
If a man comes to the door of poetry untouched by the madness of the Muses, believing that technique alone will make him a good poet, he and his sane compositions never reach perfection, but are utterly eclipsed by the performances of the inspired madman.
Wisest is he who knows he knows not.