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

(Source: cptryon.org)