' Let it be '...

"Ask not that events should happen as you will,

but let your will be that events should happen as they do,

and you shall have peace."



Epictetus
Enchiridion
in Epictetus: The Discourses and Manual [Enchiridion], Together With Fragments of His Writings
Translated by P. E. Matheson
Oxford: The Clarendon Press. 1916, p. 470, at sacred-texts.com