Dr. Seuss

"When you think things are bad, when you feel sour and blue, when you start to get mad... you should do what I do! ... Thank goodness for all of the things you are not! Thank goodness you're not something someone forgot, and left all alone in some punkerish place like a rusty tin coat hanger hanging in space. That's why I say, "Duckie! Don't grumble! Don't stew! Some critters are much-much, oh, ever so much-much, so muchly much-much more unlucky than you!"