Freedom does not mean being free from something, but being free to do something.
自由并不意味着摆脱某物,而是能够自由地去做某事。
衡量一个文明的标准是它如何对待其艺术家。
如果你的梦想没有吓到你,那它们就太小了。
Mathematics is not about numbers, equations, computations, or algorithms: it is about understanding.