Let's Read Epictetus: Enchiridion #8

Chapter eight is a single sentence. Here is Robert Dobbin's translation: "Don't hope events will turn out the way you want, welcome events in whichever way they happen: this is the path to peace."

Note that this is not resignation nor is it apathy. The stoics didn't oppose seeking justice (for ourselves and others) or planning for next year or seeking to better the world. We should try to do all these things. But since the realization of circumstance is ultimately outside our control we cannot have our hope in circumstances. Our good is in virtue, not in favorable or even just circumstances. 

Whether circumstances are 'good' or 'bad', they are an opportunity for us to make sound judgments and exercise virtue. Since the circumstances of our lives are ultimately outside our control it makes no sense to rail against what happens to us. We welcome whatever comes to pass because we always have the opportunity to pursue virtue and be at peace no matter what happens. 

This is of course easier said than done, but that is no reason not to try. We will never be a peace if we do not clearly, consistently, and constantly distiguish between what is in our control and what is outside our control.