All things are possible until they are proved impossible and even the impossible may only be so, as of now.
把所有的鸡蛋放在一个篮子里是可以的,只要你能控制那个篮子。
时间是我所有作品中看不见的材料。
Mathematics is not a careful march down a well-cleared highway, but a journey into a strange wilderness, where the explorers often get lost.