10. And if anything happens which does not foster ourselves or our affairs with joyous success, it is not to be set down forthwith as an evil, and as a pernicious thing. The world rains or does not rain: for itself it rains or does not rain; and, though you perhaps are ignorant of it, it either diminishes excessive moisture by a burning drought, or by the outpouring of rain moderates the dryness extending over a very long period. It raises pestilences, diseases, famines, and other baneful forms of plagues: how can you tell whether it does not thus remove that which is in excess, and whether, through loss to themselves, it does not fix a limit to things prone to luxuriance?