一个奇怪的事实是，根据是从生物学还是地球物理学的角度来探讨问题，关于地球史前条件的结论完全相反，这反映了我们目前知识的不完整状态。

I’ve learned that you have to be fearless in life to get what you want.

气候变化是我们这个时代最大的挑战之一，我们必须立即采取行动。

Materials tell their own stories; we just have to listen.

I'm alive and I have a chance to do something with my life. That's the only motivation I need.

历史将宣判我无罪。