This is an outstanding talk by Susan Cain at the TED Talks on introverts. If you, or you know someone who is an introvert you are going to want to listen to this. She talks about how society has turned being an introvert into social disease. She reminds us that the world need introverts for in ones quietness is offend where great ideas are born.
I am a fan of Tony Robbins. I own several of his programs, which I enjoy listening to time and again. Here is a 23 minute talk he did had TED Talk. I hope you take the time to listen to it, and enjoy it.