The best time to plant a tree was 20 years ago. The second best time is now.

科幻小说是我们时代的现实主义。

Overfishing is killing the goose that lays the golden eggs. We must adhere to scientific fishing and give the ocean time to recover.

最有力的故事是那些提出问题，而非给出答案的故事。

"Doubt is useful for a while. We must all pass through the garden of Gethsemane. If Christ played with doubt, so must we."

Sustainability is no longer optional—it’s a business imperative.

我希望网络为人类服务。它应该是人们使用的工具，而不是利用人们的技术。