Better the whole people perish than that injustice be done

The more we come in contact with animals and observe their behaviour, the more we love them, for we see how great is their care of the young.

Innocence is indeed a glorious thing; but, unfortunately, it does not keep very well and is easily led astray.

An action, to have moral worth, must be done from duty.

Out of the crooked timber of humanity, no straight thing was ever made.

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.

The only thing that is good without qualification is a good will.