"The revolutionary despises all doctrines and refuses to accept the mundane sciences, leaving them for future generations. He knows only one science: the science of destruction. For this reason, but only for this reason, he will study mechanics, physics, chemistry, and perhaps medicine. But all day and all night he studies the vital science of human beings, their characteristics and circumstances, and all the phenomena of the present social order. The object is perpetually the same: the surest and quickest way of destroying the whole filthy order. "