If you want me to believe in God, you must make me touch him.

Scepticism is the first step toward truth.

All things must be examined, debated, investigated without exception and without regard for anyone's feelings.

The man who first pronounced the barbarous word God ought to have been immediately destroyed.

First move me, astonish me, break my heart, let me tremble, weep, stare, be enraged-only then regale my eyes.

Wandering in a vast forest at night, I have only a faint light to guide me. A stranger appears and says to me: 'My friend, you should blow out your candle in order to find your way more clearly.' This stranger is a theologian.

There is less harm to be suffered in being mad among madmen than in being sane all by oneself.