All life is the struggle, the effort to be itself.

It is not obligatory for a generation to have great men.

These are the only genuine ideas, the ideas of the shipwrecked. All the rest is rhetoric, posturing, farce.

We cannot put off living until we are ready. The most salient characteristic of life is its urgency, 'here and now' without any possible postponement. Life is fired at us point-blank.

We need to study the whole of history, not to fall back into it, but to see if we can escape from it.

Life is a struggle with things to maintain itself among them. Concepts are the strategic plan we form in answer to the attack.

If the human intellect functions, it is actually in order to solve the problems which the man's inner destiny sets it.