We don't inherit the ocean from our ancestors; we borrow it from our children.

Core technologies cannot be bought; they must be developed independently.

Speak confidently as if you are right， but listen carefully as if you are wrong.

想让小孩子在旅行中表现良好，可以准备一袋他们喜欢的糖果，当他/她不乖时，就向窗外扔掉一块糖。