Habit is a second nature that destroys the first. But what is nature? Why is habit not natural? I am very much afraid that nature itself is only a first habit, just as habit is a second nature.
We view things not only from different sides, but with different eyes; we have no wish to find them alike.
Our nature consists in motion; complete rest is death.
The greatness of man is great in that he knows himself to be wretched. A tree does not know itself to be wretched.
Man's true nature being lost, everything becomes his nature; as, his true good being lost, everything becomes his good.
Vanity is but the surface.