赏赐并不能让人欢喜,责罚也不能让人畏惧。 
不耽误农业生产的季节,粮食就会吃不完;密网不下到池塘里,鱼鳖就会吃不完;按一定的季节入山伐木,木材就会用不完。
科技行业的多样性不仅仅是锦上添花,它对创新至关重要。
一个女人能为她的孩子做的最重要的事情就是爱他们的父亲。
The beauty of science lies in its ability to surprise us.
Do not put forward anything that you cannot prove by experimentation.