A good civilisation spreads over us freely like a tree, varying and yielding because it is alive. A bad civilisation stands up and sticks out above us like an umbrella-artificial, mathematical in shape; not merely universal, but uniform.
How often does a man ruin his disciples by remaining always with them! When men are once trained, it is essential that their leader leave them, for without his absence they cannot develop themselves. Plants always remain small under a big tree.