The mind is a dynamic system that constantly adapts to its environment.
在个体中，疯狂是罕见的；但在团体、党派、国家和时代中，它却是常规。
书是一面镜子：如果一头驴往里看，你不能指望看到一位使徒。
良好的习惯塑造优秀的人生。
The man who writes about himself and his own time is the only man who writes about all people and about all time.
