In this respect fundamentalism has demonic traits. It destroys the humble honesty of the search for truth, it splits the conscience of its thoughtful adherents, and it makes them fanatical because they are forced to suppress elements of truth of which they are dimly aware

Man is not what he believes himself to be in his conscious decisions.

Boredom is rage spread thin.

But freedom is the possibility of a total and centered act of the personality, an act in which all the drives and influences which constitute the destiny of man are brought into the centered unity of a decision.

The courage to be is rooted in the God who appears when God has disappeared in the anxiety of doubt.

[A] process was going on in which people were transformed into things, into pieces of reality which pure science can calculate and technical science can control. … [T]he safety which is guaranteed by well-functioning mechanisms for the technical control of nature, by the refined psychological control of the person, by the rapidly increasing organizational control of society – this safety is bought at a high price: man, for whom all this was invented as a means, becomes a means himself in the service of means.

...history has shown that the most terrible crimes against love have been committed in the name of fanatically defended doctrines.