不要拆掉一面圍牆，除非你知道它為何被豎起。 Don’t ever take a fence down until you know why it was put up.

不要拆掉一面圍牆，除非你知道它為何被豎起。 Don’t ever take a fence down until you know why it was put up.
美國詩人 羅伯特佛洛斯特 Robert Frost