Mathematics knows no races or geographic boundaries; for mathematics, the cultural world is one country.
If you don't change yourself, you will be changed by others.
我们不能借着肉贩,啤酒商或面包师的善行而获得晚餐,而是源于他们对自身利益的看重。
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。