Seek not the favor of the multitude; it is seldom got by honest and lawful means. But seek the testimony of few; and number not voices, but weigh them.

Philosophy stands in need of a science which shall determine the possibility, principles, and extent of human knowledge à priori.

All thought must, directly or indirectly, by way of certain characters, relate ultimately to intuitions, and therefore, with us, to sensibility, because in no other way can an object be given to us.

The busier we are, the more acutely we feel that we live, the more conscious we are of life.

Two things awe me most, the starry sky above me and the moral law within me.

By a lie a man throws away and, as it were, annihilates his dignity as a man. A man who himself does not believe what he tells another ... has even less worth than if he were a mere thing. ... makes himself a mere deceptive appearance of man, not man himself.

I had therefore to remove knowledge, in order to make room for belief.