In mathematics, you don't understand things. You just get used to them.
在数学中,你并不理解事物。你只是习惯了它们。
如果技术不能赋能于人,它就毫无意义。
Happiness depends on the inner self, not the external world.
教育者的心必须是一团活生生的火焰,是温暖和光明的源泉。