Meditations 6:42

All of us are working on the same project. Some consciously, with understanding; some without knowing it. (I think this is what Heraclitus meant when he said that "those who sleep are also hard at work"—that they too collaborate in what happens.) Some of us work in one way, and some in others. And those who complain and try to obstruct and thwart things—they help as much as anyone. The world needs them as well.

So make up your mind who you'll choose to work with.

The force that directs all things will make good use of you regardless—will put you on its payroll and set you to work.

But make sure it's not the job Chrysippus speaks of: the bad line in the play, put there for laughs.