The best way to predict the future of our forests is to create it through responsible management.

The purpose of abstraction is not to be vague, but to create a new semantic level in which one can be absolutely precise.

The real question is not whether climate is changing, but how fast and how much we can adapt.

艺术是自由的科学。

我不会让世界改变我的梦想。

The good life is a process, not a state of being. It is a direction, not a destination.

过去是一个异国；他们在那里做事的方式不同。

在科学问题上，一千人的权威抵不上一个人的谦逊推理。