Being human means asking the questions of one's own being and living under the impact of the answers given to this question. And, conversely, being human means receiving answers to the questions of one's own being and asking questions under the impact of the answers.

Astonishment is the root of philosophy.

Sometimes I think it is my mission to bring faith to the faithless, and doubt to the faithful.

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 able to decide for or against reason, he is able to create beyond reason or to destroy below reason

The most intimate motions within the depths of our souls are not completely our own. For they belong also to our friends, to humankind, to the universe, and the Ground of all being, the aim of our life.

God does not exist. He is being-itself beyond essence and existence. Therefore to argue that God exists is to deny him.