Meditations of Marcus Aurelius Book VII
What is badness? It is that which thou hast often seen. And on the occasion of everything which happens keep this in mind, that it is that which thou hast often seen. Everywhere up and down thou wilt find the same things, with which the old histories are filled, those of the middle ages and those of our own day; with which cities and houses are filled now. There is nothing new: all things are both familiar and short-lived.