The best books are the ones that children want to read again and again.

当你解决一个数学问题时，你不仅得到了答案，还理解了为什么这是答案。

快乐的最好方式是让别人快乐。

Success is not about the amount of money you have, it's about the amount of lives you impact.

青年是国家未来的主人。青年必须成为劳动和生产运动的先锋。