Though completely armed with knowledge and endowed with power, we are blind and impotent in a world we have equipped and organized-a world of which we now fear the inextricable complexity.

I thought it necessary to study history, even to study it deeply, in order to obtain a clear meaning of our immediate time.

At times I think and at times I am.

Long years must pass before the truths we have made for ourselves become our very flesh.

The advantage of the incomprehensible is that it never loses its freshness.

The most ridiculous were those who, on their own authority, made themselves the judges and justices of the tribe. They seemed never to suspect that our judgments judge us, and that nothing exposes our weaknesses and reveals ourselves more naively than the attitude of pronouncing upon our neighbors.

A difficulty is a light. An insurmountable difficulty is a sun.