计算的研究对于理解可计算性的极限至关重要。
The study of computation is essential to understanding the limits of what can be computed.
世界是平的，而我们正站在上面。
And, after all, what is a fashion? From the artistic point of view, it is usually a form of ugliness so intolerable that we have to alter it every six months.
语言是存在的家。在其家中，人居住。那些用语言思考和创造的人是这个家的守护者。
To be a good mathematician, you need to have both intuition and rigor.