"We must learn to suffer what we cannot evade; our life, like the harmony of the world, is composed of contrary things—of diverse tones, sweet and harsh, sharp and flat, sprightly and solemn: the musician who should only affect some of these, what would he be able to do? he must know how to make use of them all, and to mix them; and so we should mingle the goods and evils which are consubstantial with our life; our being cannot subsist without this mixture, and the one part is no less necessary to it than the other." Michel de Montaigne