The knowledge of courtesy and good manners is a very necessary study. It is like grace and beauty, that which begets liking and an inclination to love one another at the first sight.
Michel de MontaigneIt is a thorny undertaking, and more so than it seems, to follow a movement so wandering as that of our mind, to penetrate the opaque depths of its innermost folds, to pick out and immobilize the innumerable flutterings that agitate it.
Michel de Montaigne