The essence of mathematics is not to make simple things complicated, but to make complicated things simple.
数学的本质不是把简单的事情复杂化，而是把复杂的事情简单化。
The difference between ordinary and extraordinary is that little extra.
A great artist can make the invisible visible.
压力、挑战，这一切消极的东西都是我能够取得成功的催化剂。