God grant me
the Serenity to accept the things I cannot change,
the Courage to change the things I can,
and the Wisdom to know the difference;
Living one day at a time;
Accepting hardship as a pathway to peace;
Taking, as Jesus did, this sinful world as it is,
not as I would have it:
Trusting that you will make all things right
if I surrender to your will;
that I may be reasonably happy in this life
and supremely happy with you forever in the next.
See here for a brief history of the Serenity Prayer. (taken from here).