The first man who， having enclosed a piece of ground， bethought himself of saying 'This is mine，' and found people simple enough to believe him， was the real founder of civil society.
性能的关键在于优雅，而不是大量的特殊情况。
人是从失败中学习的。
The purpose of mental activity is to guide action.
The past is a foreign country; they do things differently there.