I have never fought in such a way as to say: I am the true Christian, others are not Christians.

The crucial thing is to find a truth which is truth for me, to find the idea for which I am willing to live and die.

In the Christianity of Christendom the Cross has become something like the child’s hobby-horse and trumpet.

The self-assured believer is a greater sinner in the eyes of God than the troubled disbeliever.

The more men believe an idea to be true the greater the likelihood that the idea is mistaken. Those who are right usually stand alone.

Sleeping is the height of genius

The truly simple way of presenting Christianity is to do it.