Can a man change, or are his personality traits so fixed that external circumstances are incapable of adjusting them in any significant way? This is a question that finds enthusiastic advocates for both answers. The cynics–or as they prefer to be called, the “realists”–tell us that personality does not change. Our knowledge contracts and expands, but the core of our being remains immutable. We may become more polished in our presentations, or more adept at concealing our intentions, but in the end it is still the same old “us.” We are here, and we have not changed.