When an apple ripens and falls—what makes it fall? Is it that it is attracted to the ground, is it that the stem withers, is it that the sun has dried it up, that it has grown heavier, that the wind shakes it, that the boy standing underneath wants to eat it?
No one thing is the cause. All this is only the coincidence of conditions under which every organic, elemental event of life is accomplished. And the botanist who finds that the apple falls because the cellular tissue degenerates, and so on, will be as right and as wrong as the child who stands underneath and says that the apple fell because he wanted to eat it and prayed for it. As he who says that Napoleon went to Moscow because he wanted to, and perished because Alexander wanted him to perish, will be both right and wrong, so he will be right and wrong who says that an undermined hill weighing a million pounds collapsed because the last worker struck it a last time with his pick. In historical events the so-called great men are labels that give the event a name, which, just as with labels, has the least connection of all with the event itself.
Their every action, which to them seems willed by themselves, in the historical sense is not willed, but happens in connection with the whole course of history and has been destined from before all ages.
Tolstoy, Leo. War and Peace (Vintage Classics) , translated by Richard Pevear and Larissa Volokhonsky