(On the seeming futility of metaphysics) Why then has nature afflicted our reason with the restless striving for such a path, as if it were one of reason’s most important occupations? Still more, how little...

The death of dogma is the birth of morality.

Handle so, daß die Maxime deines Willens jederzeit zugleich als Prinzip einer allgemeinen Gesetzgebung gelten könne.

…new prejudices will serve as well as old ones to harness the great unthinking masses.For this enlightenment, however, nothing is required but freedom, and indeed the most harmless among all the things to which this...

Enlightenment is man’s emergence from his self-imposed immaturity. Nothing is required for this enlightenment except freedom; and the freedom in question is the least harmful of all, namely, the freedom to use with and publicly...

The schematicism by which our understanding deals with the phenomenal world … is a skill so deeply hidden in the human soul that we shall hardly guess the secret trick that Nature here employs.

I had to deny knowledge in order to make room for faith.

But to unite in a permanent religious institution which is not to be subject to doubt before the public even in the lifetime of one man, and thereby to make a period of time fruitless...