当一个人开始长得像他的父亲时，他就知道自己正在变老。
A man knows when he is growing old because he begins to look like his father.
物理理论的美不仅在于其数学的优雅，还在于其解释和预测现象的能力。
The universe is not only stranger than we imagine, it is stranger than we can imagine.
我从不写政治歌曲，歌曲拯救不了世界，我已经看透了一切。