Click on the phrases to see them in context. The original texts by Immanuel Kant and David Hume are available from the Gutenberg Projet.

If you assent, therefore, to this last proposition, and assert, that justice and injustice are not susceptible of degrees, you in effect assert, that they are not naturally either vicious or virtuous; since vice and virtue, moral good and evil, and indeed all natural qualities, run insensibly into each other, and are, on many occasions, undistinguishable.