The Serenity Prayer:
God grant me the serenity to
accept the things I cannot change;
courage to change the things I can;
and wisdom to know the difference.
Living one day at a time;
Enjoying one moment at a time.
Accepting hardships as the pathway to peace.
Taking, as He did, this sinful world as it is, not as I would have it.
Trusting that He will make all things right if I surrender to His will.
That I may be reasonably happy in this life and supremely happy with Him forever in the next.
Amen.

--Reinhold Niebuhr