Don't demand or expect that events happen as you would wish them do. Accept events as they actually happen. That way, peace is possible.
EpictetusWhen we blather about trivial things, we ourselves become trivial, for our attention gets taken up with trivialities. You become what you give your attention to.
EpictetusDo nothing in a depressed mood, nor as one afflicted, nor as thinking that you are in misery, for no one compels you to that.
Epictetus