The challenge of our time is to create a sustainable energy future.

我不想被记住，我想让人无法忘记。

文明的伟大进步，无论是在建筑、绘画、科学、文学、工业还是农业领域，都从未来自中央集权的政府。

General relativity has passed every test we’ve thrown at it, even near a supermassive black hole.

Problems frequently get easier if you turn them around in reverse. In other words, if you want to help India, the question you should ask is not “how can I help India,” it’s “what is doing the worst damage in India? What will automatically do the worst damage and how do I avoid it?”