年轻时，你以为长大后就会幸福。但长大后，你意识到年轻时的自己才是幸福的。

The beauty of mathematics is that it allows us to abstract away from the physical world and focus on the underlying principles.

The discovery of gravitational waves has opened a new window to the universe.

量子力学不仅是一种理论，而且是一种关于自然的新思维方式。

Extraordinary claims should require extraordinary evidence to be believed.

最危险的浪费是我们没有意识到的浪费。