If there is a gun hanging on the wall in the first act, it must fire in the last.

The more refined one is, the more unhappy.

Medicine is my lawful wife and literature my mistress; when I get tired of one, I spend the night with the other.

Common hypocrites pass themselves off as doves; political and literary hypocrites pose as eagles. But don't be fooled by their eagle-like appearance. These are not eagles, but rats or dogs.

To advise is not to compel.

At the door of every happy person there should be a man with a hammer whose knock would serve as a constant reminder of the existence of unfortunate people.

All saints have past and all sinners have a future.