It’s not an apology if it comes with an excuse. It is not a compliment if it comes with a request.

"I'd never given much thought to how I would die, but dying in the place of someone I love seems like a good way to go."

There is a crack in everything, that's how the light gets in.

理论物理学的美丽在于它能够用几个简单的方程描述宇宙，揭示出表面复杂性之下的基础简单性。

我从不回头看。我期待下一个挑战。