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。
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。