"I write songs about my life, and my life is pretty normal."

In the quest for understanding, failure is not the opposite of success; it is a stepping stone to it.

The laser is to attosecond physics what the telescope was to astronomy.

以客观角度来看，这个世界确实变得更好，但同时也变得更糟。前进一步，又倒退一步，仿佛宇宙在科技进步和文化倒退间达成平衡，使人类的进展呈钟形曲线。

人生的意义在于追求真理和美德。

这只鹰是一面镜子，我在其中看到了自己的倒影。