There are two kinds of worries - those you can do something about and those you can't. Don't spend any time on the latter.

There are two kinds of worries - those you can do something about and those you can't. Don't spend any time on the latter.

有两种担心——你能做些什么和你不能做什么。不要把时间花在后者上。

-- Duke Ellington 艾灵顿公爵