不用圆规和曲尺，就不能画出方形和圆形。比喻做事要遵循一定的法则。

To live is to be marked. To live is to change, to acquire the words of a story, and that is the only celebration we mortals really know.

有真才能的人不依恃才能，有真学问的人不夸耀学问。

Science is a journey, and every step matters.

新观点总是被怀疑和通常反对，原因只是因为它们尚未变得普遍。