在数学中，提出问题的艺术必须比解决问题更有价值。
In mathematics, the art of proposing a question must be held of higher value than solving it.
You can’t build a reputation on what you are going to do.
The people who were trying to make this world worse are not taking the day off. Why should I?
Mathematics is not just about numbers, equations, computations, or algorithms: it is about understanding.
"The only way to get rid of a temptation is to yield to it."