Your work is going to fill a large part of your life, and the only way to be truly satisfied is to do what you believe is great work.

生活就是受苦，生存就是在苦难中找到某种意义。

Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.

命运不靠机缘，而是靠你的抉择。命运不是等来的，而是争来的。