最可怕的时刻永远是你开始之前。

The challenge of leadership is to be strong, but not rude; be kind, but not weak; be bold, but not bully; be thoughtful, but not lazy; be humble, but not timid; be proud, but not arrogant; have humor, but without folly.

房子应该是家庭的殿堂。

学习数学的最好方法就是做数学。