把这一句，留给此刻的你

There are three things which if one does not know, one cannot live long in the world: what is too much for one, what is too little for one, and what is just right for one.

有三件事，如果一个人不知道，他就不能在这个世界上活得长久:什么对一个人来说太多，什么对一个人来说太少，什么对一个人来说刚刚好。

— 佚名