The chief beginning of evil is goodness in excess.

Marriage, if one will face the truth, is an evil, but a necessary evil.

The evil done by men of goodwill is the worst of all ... We have done terrible things, for the best of reasons, and that makes it worse.

It's better to be good than evil, but one achieves goodness at a terrific cost.

Nothing is good in moderation. You cannot know good in anything until you have torn the heart out of it by excess.

Evil is committed without effort, naturally, fatally; goodness is always the product of some art.