The attosecond timescale is to electron motion what the high-speed camera was to studying animal locomotion.

坚持很重要， 永远不要放弃，除非不得已。

身体总是存在的，即使它缺席。

"The universe has moved for us."

纯数学在某种程度上是逻辑思想的诗歌。

冒险只是麻烦的浪漫名字。