数学是人类精神最美丽和最强大的创造。

Teachers are the most important role models in schools, the most instructive examples, and the most vivid examples for students.

True leadership means listening—especially to those who disagree with you.

I think the most important thing in life is self-confidence.

译文：凡是说祸福，是靠自己求来的，就是圣贤之言。若是说祸福，是靠上天决定的，就是庸俗之言。