我们不是从祖先那里继承了土地;我们是从子孙那里借来的。
We don't inherit the land from our ancestors; we borrow it from our children.
The only way to learn mathematics is to do mathematics.
预测未来的最好方法就是发明它。
I’ve never been afraid of death. It’s the process of dying that worries me.
我能给的最好建议是保持谦逊并努力工作。