If winning becomes too important in a game， change the rules to make it more fun. Changing rules can become the new game.

Leadership is about making tough decisions today that will benefit future generations.

做数学的艺术在于找到包含所有普遍性萌芽的特殊情况。

You don't pass or fail at being a person, dear.

"True strength is not in never falling, but in rising every time we fall."

"You don't have to be perfect to be amazing."