Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.
这是我的一个秘密,再简单不过的秘密:一个人只有用心去看,才能看到真实。事情的真相只用眼睛是看不见的。
No society can surely be flourishing and happy, of which the far greater part of the members are poor and miserable.