Since Auschwitz we know what man is capable of. And since Hiroshima we know what is at stake.

I became acquainted with those martyrs whose behavior in camp, whose suffering and death, bore witness to the fact that the last inner freedom cannot be lost.

The crowning experience of all, for the homecoming man, is the wonderful feeling that, after all he has suffered, there is nothing he need fear anymore—except his God.

[Speaking of his experience in a concentration camp:] As we said before, any attempt to restore a man's inner strength in the camp had first to succeed in showing him some future goal...Woe to him who saw no more sense in his life, no aim, no purpose, and therefore no point in carrying on. He was soon lost.

A man's concern, even his despair, over the worthwhileness of life is an existential distress but by no means a mental disease.

What is to give light must endure burning.

I try to do everything as soon as possible, and not at the last moment. This ensures that, when I am overburdened with work, I will not face the added pressure of knowing that something is still to be done.