The need of truth is more sacred than any other need.

If there were no affliction in this world we might think we were in paradise.

Contradiction is the lever of transcendence.

A work of art has an author and yet, when it is perfect, it has something which is anonymous about it.

One could count on one's fingers the number of scientists throughout the world with a general idea of the history and development of their particular science: there is none who is really competent as regards sciences other than his own. As science forms an indivisible whole, one may say that there are no longer, strictly speaking, scientists, but only drudges doing scientific work.

In struggling against anguish one never produces serenity; the struggle against anguish only produces new forms of anguish.

In this world, only those people who have fallen to the lowest degree of humiliation, far below beggary, who are not just without any social consideration but are regarded by all as being deprived of that foremost human dignity, reason itself - only those people, in fact, are capable of telling the truth. All the others lie.