"The only thing that one really knows about human nature is that it changes. Change is the one quality we can predicate of it. The systems that fail are those that rely on the permanency of human nature, and not on its growth and development. The error of Louis XIV was that he thought human nature would always be the same. The result of his error was the French Revolution. It was an admirable result."
"Grace is always natural, though that does not prevent its being often used to hide a lie. The rude shocks and uncomfortably constraining influences of life disappear among graceful women and poetical men; they are the most deceptive beings in creation; distrust and doubt cannot stand before them; they create what they imagine; if they do not lie to others, they do to their own hearts; for illusion is their element, fiction their vocation, and pleasures in appearance their happiness. Beware of grace in woman, and poetry in man -- weapons the more dangerous because the least dreaded!"