The function of freedom is to free someone else.
If you want to live a happy life, tie it to a goal, not to people or things.
数学中真正的挑战不是解决问题，而是提出正确的问题。
"The present is a fragile bridge between the past and the future, and we are all just trying to cross it without falling."
The best stories are those that make us question ourselves.