The Internet is a powerful tool for education, but it is not a substitute for the teacher.

There is a way to be good again.

真理是神，神就是真理。

我们必须在经济增长和生态保护之间取得平衡——别无选择。

你能成为的最有力的东西就是你自己。

Freedom does not consist in any dreamt-of independence from natural laws, but in the knowledge of these laws, and in the possibility this gives of systematically making them work towards definite ends.

"Don't watch the clock; do what it does. Keep going."

地质时间不仅漫长，而且复杂，过程以截然不同的速率运行。

宇宙是生产神的机器。

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