可持续性不再是可选项，而是当今世界生存的必要条件。

It is better to be a human being dissatisfied than a pig satisfied； better to be Socrates dissatisfied than a fool satisfied.

You can't go through life with a catcher's mitt on both hands. You need to be able to throw something back.

The possibility of finding a planet similar to Earth is what drives our passion for exoplanet research.

开始的方法是停止空谈，开始行动。