I feel worried, deeply worried, only about one thing - the possibility that we fall... that we cannot avoid an atomic war.

We may know ourselves, and yet even with all the efforts we make, we do not know ourselves. We know our fellowman, and yet we do not know him, because we are not a thing, and our fellowman is not a thing. The further we reach into the depths of our being, on someone else's being, the more the goal of knowledge eludes us.

The lust for power is not rooted in strength but in weakness.

I think the Russians might do away with the terror in twenty or thirty or years, when they are richer, and when they don't need these repressive methods so much.

It is a tragedy that most of us die before we have begun to live.

A new question has arisen in modern man's mind, the question, namely, whether life is worth living...No sensible answer can be given to the question...because the question does not make any sense.

The revolutionary and critical thinker is in a certain way always outside of his society while of course he is at the same time also in it.