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.
The biggest lie we tell ourselves is “I don‘t need to write this down because I will remember it.”
You can't change the direction of the wind, but you can adjust your sails.
The purpose of business is not just profit but contributing to society.
我不记仇，我只记得事实。