In those who rest on their unshakable faith, pharisaism and fanaticism are the unmistakable symptoms of doubt which has been repressed. Doubt is not overcome by repression but by courage. Courage does not deny that there is doubt, but it takes the doubt into itself as an expression of its own finitude and affirms the content of an ultimate concern. Courage does not need the safety of an unquestionable conviction. It includes the risk without which no creative life is possible.

There is no love which does not become help.

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.

Nothing truly real is forgotten eternally, because everything real comes from eternity and goes to eternity.

Forgiving presupposes remembering.

In the courageous standing of uncertainty, faith shows most visibly its dynamic character.

Man and nature belong together in their created glory – in their tragedy and in their salvation.