The art of doing mathematics consists in finding that special case which contains all the germs of generality.
To be brave is to love someone unconditionally, without expecting anything in return.
Legal rights are not natural rights; they are created by law.
我相信每一个成人的内心深处,都潜伏着一个爱做游戏的天真孩童,只不过随着时光流逝,蒙上了世故的尘土。