你穿过的门原来是什么样子，走过去以后也要保持那个样子。
Leave a gate behind you the way you first found it.
There is nothing either good or bad, but thinking makes it so.
The lightning that precedes the thunder is a common image of the warnings that come before calamity.
一个好的抽象是捕捉概念的本质方面，同时忽略无关的细节。
花开时不能一同欣赏，花落时也无法共同悲伤
我不相信后悔。