<P> The Serenity Prayer is the common name for a prayer written by the American theologian Reinhold Niebuhr (1892--1971). The best - known form is: </P> <Dl> <Dd> <Dl> <Dd> God, grant me the serenity to accept the things I cannot change, </Dd> <Dd> Courage to change the things I can, </Dd> <Dd> And wisdom to know the difference . </Dd> </Dl> </Dd> </Dl>

Who is widely considered to be the author of the serenity prayer