The great thing is to know when to speak and when to keep quiet.

No one can be despised by another until he has learned to despise himself.

Let us not seek our disease out of ourselves; 'tis in us, and planted in our bowels; and the mere fact that we do not perceive ourselves to be sick, renders us more hard to be cured.

There has never been any great genius without a spice of madness.

A disease is farther on the road to being cured when it breaks forth from concealment and manifests its power.

A good person dyes events with his own color . . . and turns whatever happens to his own benefit.

Extreme remedies are never the first to be resorted to.