You have to be comfortable with being uncomfortable if you want to make progress in mathematics.
有些时候,过去感觉如此之近,仿佛伸手就能触碰,然后它又消失了,像烟一样。
Freedom is not given, it is taken.
The speed of learning determines the speed of growth.
The success of an enterprise depends not only on technology but also on a deep understanding of the market and quick responses.