Prayer for Serenity

I love the beginning of this prayer:

God, grant me serenity to accept the things I cannot change, courage to change the things I can and wisdom to know the difference...

I've been saying a lot of prayers recently. I've been saying prayers to Sarah and her family. Her dad is in ICU, and had a number of complications. I've been saying prayers to Anthony and his family. His dad is in the hospital for triple bypass surgery. I've been saying prayers to a former editor's family. He apparently committed suicide and leaves behind small children. And I've been saying prayers for a cameraman's family. He died from a burst appendix early Wednesay morning. He leaves behind a pregnant fiance.