7. But change as radical as that which is being elaborated cannot be accomplished without commotion. There will be an inevitable conflict in ideas. From this conflict will forcibly arise temporary perturbations, until the rubbish be cleared away, and the equilibrium be re- established. It is, then, from a battle of ideas that these grave events will arise, and not from cataclysms, or purely material catastrophes. The general cataclysms were the consequence of the state of formation of the Earth. Now it is no more the center of the globe which is agitated, but that of the humanity.