挑战是伪装的机会，勇敢地拥抱它们。
Challenges are opportunities in disguise; embrace them with courage.
You have to keep moving forward, no matter what.
La plus grande preuve d'amour, c'est le sacrifice.
Millions saw the apple fall, but Newton asked why.
数学中最令人兴奋的时刻是当你发现一些隐藏在显而易见之处的东西。