“…Changing your mind is the essence of living matter. The biology is changed by every experience. The brain is constantly in development and that involves what you're learning. So what you learn changes your structure and so your mind is changed and so the meaning of what you learned has changed. You're changing your past every time you learn something because you become a different organism. I love that. It reminds me of William Blake. Didn't he say something, to the effect of the man who never alters his opinion, it's like standing water and breeds reptiles of the mind.”