From the essence of the universe, as if it were wax, nature molds now a little horse; and when it has broken this up, it uses the material for a little tree, then for a little man, then for something else; and each of these things exists for a very short time. But it is no hardship for a box to be broken up, just as there was none in its being fastened together. Marcus Aurelius, Meditations 7.23
