The world needs something stronger than any possible rebellion against its peace. In other words it needs a federal world government embodying a new conception of human life as one whole.
If the spirit has passed through a great many sensations, possibly it can no longer be sated with them, but grows more excited, and demands more sensations, and stronger and stronger ones, until at length it falls exhausted.
It's no accident that capitalism has brought with it progress, not merely in production but also in knowledge. Egoism and competition are, alas, stronger forces than public spirit and sense of duty.