Apart from moral conduct, all that man thinks himself able to do in order to become acceptable to God is mere superstition and religious folly.

From such crooked wood as that which man is made of, nothing straight can be fashioned.

Parents usually educate their children merely in such a manner than however bad the world may be, they may adapt themselves to its present conditions. But they ought to give them an education so much better than this, that a better condition of things may thereby be brought about by the future.

Melancholy characterizes those with a superb sense of the sublime.

Even a man's exact imitation of the song of the nightingale displeases us when we discover that it is a mimicry, and not the nightingale.

But a lie is a lie, and in itself intrinsically evil, whether it be told with good or bad intents.

Time is not an empirical concept. For neither co-existence nor succession would be perceived by us, if the representation of time did not exist as a foundation a priori.