Mathematics is not a deductive science—that's a cliché. When you try to prove a theorem, you don't just list the hypotheses and then start to reason. What you do is trial and error, experimentation, guesswork.

人类最重要的发明是发明方法本身。

The study of topological phases of matter is not just about discovering new materials; it's about uncovering the fundamental principles that govern the quantum world.

做数学就是探索一个思想的宇宙，唯一的限制是你的想象力。