行为法则可以从基本的生理原则中推导出来。
Loneliness is the poverty of self; solitude is the richness of self.
今天种下的每一棵树都是留给明天的遗产。
The purpose of education is not to fill the minds of students with facts but to teach them to think.
教育的目的不是用事实填满学生的头脑,而是教会他们思考。
The best investments are the ones that compound over time.