The total depravity of inanimate things.

So then, let "Deserved" be written on the door of hell, but on the door of Heaven and life, "The free gift" (68).

Till thou hast learned to suffer from a saint a well as from the wicked, and to be abused by the godly as well as the ungodly, never look to live a contented or comfortable life, nor ever think thou has truly learned the art of suffering (383).

The depravity of man is at once the most empirically verifiable reality but at the same time the most intellectually resisted fact.

As one can hardly find any thing in a house where nothing keeps its place, but all is cast on a heap together; so it is in the heart where all things are in disorder, especially when darkness is added to this disorder: so that the hear t is like an obscure cave or dungeon, where there is but a little crevice of light, and a man must rather grope than see No wonder if men mistake in searching such a heat, sand so miscarry in judging of their estate (304).

What's virtue in man can't be virtue in a cat.