My favorite quote is from the book Divergent by Veronica Roth.
"I am not not Abnegation.
I am not Dauntless.
I am Divergent.
And I cannot be controlled."
The full meaning of it does come from reading the book, but the quote is basically about finally discovering who you really are and that you don't have to fit into society's cookie cutter jock, emo, nerd, sorority girl, etc. molds. You can be your own person and that is powerful.