We don't receive wisdom; we must discover it for ourselves after a journey that no one can take for us or spare us.
粒子的概念只是近似的，并且只有在动量较小的极限下才有意义。
我不相信遗憾。一切事情的发生都有原因。
物理定律不仅仅是规则，它们是宇宙的语言。