When I want to understand what is happening today or try to decide what will happen tomorrow, I look back.

When I want to understand what is happening today or try to decide what will happen tomorrow, I look back.

当我想知道今天发生了什么，或者想决定明天会发生什么时，我会回头看。

-- Omar Khayyám 奥马尔·哈伊姆