...the reason for [this age's] anxiety and unrest is because in one direction, 'truth' increases in scope and quantity - via science and technology - while in the other, certainty and confidence steadily decline. Our age is a master in developing truths while being wholly indifferent to certitude. It lacks confidence in the good.

This, then, is the ultimate paradox of thought: to want to discover something that thought itself cannot think.

Most people rush after pleasure so fast that they rush right past it.

And if something should be found, particularly in the first part of the dissertation, that one is generally not accustomed to come across in scholarly writings, the reader must forgive my jocundity, just as I, in order to lighten the burden, sometimes sing at my work.

If a man wants to set up as an innkeeper and he does not succeed, it is not comic. If, on the contrary, a girl asks to be allowed to set up as a prostitute and she fails, as sometimes happens, it is comic.

To love another person is to help them love God.

An individual in despair despairs over something. . . . In despairing over something, he really despair[s] over himself, and now he wants to get rid of himself. Consequently, to despair over something is still not despair proper. . . . To despair over oneself, in despair to will to be rid of oneself-this is the formula for all despair.