It always annoys me when people attribute quotes to the wrong sources, usually to celebrities. For instance, this quote was song by Barlow Girl, but it was originally scratched onto the wall of a Cologne Germany concentration camp.
Don't let society define your beauty. God has created you in His image, His PERFECT image. And He thinks you are beautiful exactly the way you are. When you look in the mirror do you see yourself as a beautiful creation of God? because you are.