世界不是一个需要解决的问题;它是我们所属的一个生命体。
The world is not a problem to be solved; it is a living being to which we belong.
The most profound discoveries often start with simple observations.
科学不过是常识的极致——观察上严格精确,逻辑上对谬误毫不留情。
物理理论的美在于它能够统一看似无关的现象。
地理学是研究地球作为人类家园的科学。
Leadership means making tough decisions even when they are unpopular.