In short, on all sides, whatever men do and think was real and alive to Voltaire. Whatever had the quality of interesting any imaginable temperament, had the quality of interesting him. There was no subject which any set of men have ever cared about, which, if he once had mention of it, Voltaire did not care about likewise. And it was just because he was so thoroughly alive himself, that he filled the whole era with life. The more closely one studies the various movements of that time, the more clear it becomes that, if he was not the original centre and first fountain of them all, at any rate he made many channels ready and gave the sign. He was the initial principle of fermentation throughout that vast commotion. We may deplore, if we think fit, as Erasmus deplored in the case of Luther, that the great change was not allowed to work itself out slowly, calmly, and without violence and disruption. These graceful regrets are powerless, and on the whole they are very enervating. Let us make our account with the actual, rather than seek excuses for self-indulgence in pensive preference of something that might have been. Practically in these great circles of affairs, what only might have been is as though it could not be; and to know this may well suffice for us. It is not in human power to choose the kind of men who rise from time to time to the supreme control of momentous changes. The force which decides this immensely important matter is as though it were chance. We cannot decisively pronounce any circumstance whatever an accident, yet history abounds with circumstances which in our present ignorance of the causes of things are as if they were accidents.