To teach mathematics is to inspire the next generation of thinkers and problem solvers.
教授数学是为了激励下一代的思考者和问题解决者。
When one door is closed, don't you know, another is open.
真理是永恒不变的。
译文：看见合适的时机，立即行动，不要整天只知道等待。
Leadership is not about being in charge. It is about taking care of those in your charge.
「释义」：人要在具体事务中磨炼，才能真正站稳脚跟。
The best way to predict the future is to invent it.