In the book The Best Advice I Ever Got by Katie Couric, Lisa Ling's contribution called Give of Yourself includes an email her husband sent her with this story -
"On a street corner I saw a cold, shivering girl in a thin dress, with no hope of a decent meal. I got angry and said to God, 'Why did you permit this? Why don't you do something about it?' God replied, 'I certainly did something about it. I made you.'" I thought that was a good reminder to help others when you can.
Here is a great quote from Groucho Marx -
"Each morning when I open my eyes I say to myself: I not events, have the power to make me happy or unhappy today. I can choose which it shall be. Yesterday is dead, tomorrow hasn't arrived yet. I can have just one day today and I'm going to be happy in it."
When you come to the end of your rope, tie a knot in it and hang on. - Franklin D. Roosevelt