Don't stop when you're tired. Stop when you're done.

The most sustainable resource is human ingenuity.

The more determinedly I exist, as myself, within the conditions of the time, the more clearly I shall hear the voice of the eternal.

You miss 100% of the shots you don’t take.

地理学的研究是研究人与环境之间的关系。

最伟大的领导者不一定是做最伟大事情的人，而是能让人们去做最伟大事情的人。