数学是模式的科学，而自然利用了每一种可能的模式。

"To read is to travel without moving, to live a thousand lives in one."

We don't inherit the earth from our ancestors; we borrow it from our children—this is especially true in forestry.

解释：平民的发怒，不过是摘下帽子，光着脚，拿脑袋撞地罢了。