地球并非刚体,其对力的响应必须被视为弹性体。
一个好老师必须能够设身处地为那些觉得学习困难的人着想。
预测未来的最好方法就是去创造它。
Success is not about the money you make, it's about the difference you make in people's lives.
The only limit is the one you set for yourself.
你能做的最好的事就是做自己并享受乐趣。
I don't let fear stop me.