遗传研究应该为人类服务，而不仅仅是商业利益。

Purposive behavior in animals and men.

生活是个婊子，死亡是她的姐妹。

数字革命比文字的发明甚至印刷术的发明更为重要。

投资者应警惕高费用和复杂的产品。

The business of education is not to make the young perfect in any one of the sciences, but so to open and dispose their minds as may make them capable of any, when they shall apply themselves to it.