The concept of inflation suggests that the universe underwent a period of extremely rapid expansion shortly after the Big Bang.

我相信对你所做的事情有热情是很重要的。如果你没有热情，当事情变得艰难时，你就不会有继续前进的能量。

Animal welfare isn't just ethics—it's good science and good business.

我应该根据她的行为，而不是根据她的话来判断她。

The best weapon of a dictatorship is secrecy, but the best weapon of a democracy should be the weapon of openness.

知识是经验的产物。