When I smashed the TV, burned the newspaper, left home, threw all my money away, took all my clothes off, lied down, shut my eyes, faded away, passed out, died, met God and he asked "Who are you?" and I told him a name I didn't choose, the place I was born, the house I lived in, the school I learned in, the factory I earned in, the music I danced to and the people the talked to, when he said "So, who are you?" when- unless I was quick- I'd be stuck, and then- because I was quick- I said "I am a mass of chemicals co-ordinated by the will to live, and with the ability to acknowledge my seperate existence, as oppoesd to the theoretical existence of the rest of the universe, including you." at which point, God dissappeared, leaving me in charge and therefore by definition, I became myself.
For those of you who have no idea what I'm talking about, watch this: http://www.youtube.com/watch?v=Cf6kmAIPEaY
It talks about the fact that you're never actually you because there's so many different influences in the world.