I'm not a massive fan of written prayers that become 'rote' prayers, but this one is one that i will learn and pray from my heart. It's a 'Fransiscan Benediction':
May God bless you with discomfort at easy answers,
half truths, and superficial relationships,
so that you may live deep within your heart.
May God bless you with anger at injustice,
oppression, and exploitation of people,
so that you may work for justice, freedom and peace.
May God bless you with tears to shed for those who
suffer from pain, rejection, starvation, and war,
so that you may reach out your hand
to comfort them and to turn their pain in to joy.
And may God bless you with enough foolishness
to believe that you can make a difference in this world,
so that you can do what others claim cannot be done.