The fatal pedagogical error is to throw answers like stones at the heads of those who have not yet asked the questions.

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

I have given no definition of love. This is impossible, because there is no higher principle by which it could be defined. It is life itself in its actual unity. The forms and structures in which love embodies itself are the forms and structures in which love overcomes its self-destructive forces.

Knowledge of that which concerns us infinitely is possible only in an attitude of infinite concern.

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.

Every institution is inherently demonic.

The basic anxiety, the anxiety of a finite being about the threat of non-being, cannot be eliminated. It belongs to existence itself.