"The greatest tragedy is not the brutality of the bad people, but the silence of the good people."
People with passion can change the world for the better.
遇到坏事不必愁，只要有方法补救；好事来临也不必欢喜，要会承受。
Leadership means making tough decisions today for a better tomorrow.
在数学中，提出问题的艺术必须比解决问题更有价值。