宇宙的初始条件是一个深刻的谜,膨胀为宇宙为何看起来如此提供了一个可能的解释。
We should learn from international leaders while developing our own path.
I'm not trying to be cool. I'm just being myself.
Every piece of plastic we don't recycle is a failure of our system and our responsibility.
乐观是一种工具,你可以用它来实现你为自己设定的目标。