Humanism was not wrong in thinking that truth, beauty, liberty, and equality are of infinite value, but in thinking that man can get them for himself without grace.

Necessity is God's veil.

It is precisely those artists and writers who are most inclined to think of their art as the manifestation of their personality who are in fact the most in bondage to public taste.

The world is the closed door. It is a barrier. And at the same time it is the way through.

All the tragedies which we can imagine return in the end to the one and only tragedy: the passage of time.

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.

The demonstrable correlation of opposites is an image of the transcendental correlation of contradictories.