If we assume as the historians do that great men lead humanity to the attainment of certain ends—the greatness of Russia or of France, the balance of power in Europe, the diffusion of the ideas of the Revolution, general progress, or anything else—then it is impossible to explain the facts of history without introducing the conceptions of chance and genius.

If the aim of the European wars at the beginning of the nineteenth century had been the aggrandizement of Russia, that aim might have been accomplished without all the preceding wars and without the invasion. If the aim was the aggrandizement of