The greatest experiments start with a simple question.
Generations to come will scarcely believe that such a one as this walked the earth in flesh and blood.
Fear of change stifles progress; understanding change directs it.
正义是一种非理性的理想。尽管它对人类的意志和行动不可或缺,但它并不属于认知的范畴。
小人办事,处理的原则是私利,合于私利的就看作利,违背私利的就看作害;君子办事,衡量的标准是道义,合于道义的就看作利,违反道义的就看作害。