This is from an old Nike ad that I love, it inspires me in so many ways:
"All your life you are told the things you cannot do. All your life they will say you're not good enough or strong enough or talented enough; they will say you're the wrong height or the wrong weight or the wrong type to play this or be this or achieve this. THEY WILL TELL YOU NO, a thousand times no, until all the no's become meaningless. All your life they will tell you no, quite firmly and very quickly.
AND YOU WILL TELL THEM YES."
It's amazing how overtime we forget that that's what we're hearing all around us all the time. How you can live your life thinking you won't let it get to you and then suddenly realize you've been letting it happen for a really long time. And something cheesy, though powerful, cheesy because it's a marketing gimick, moves you to snap out of it again.