It is therefore correct to say that the senses do not err — not because they always judge rightly, but because they do not judge at all.

Act in such a way that you will be worthy of being happy.

THERE ARE TWO THINGS that don't have to mean anything, one is music and the other is laughter.

Always recognize that human individuals are ends, and do not use them as means to your end.

Freedom can never be comprehended, nor even can insight into it be gained.

Upon the solution of this problem, or upon sufficient proof of the impossibility of synthetical knowledge a priori, depends the existence or downfall of metaphysics.

Freedom is the alone unoriginated birthright of man, and belongs to him by force of his humanity; and is independence on the will and co-action of every other in so far as this consists with every other person's freedom.