You were born in a lower provincial Austrian backwater. Your father is an unpleasant minor bureaucratic cog with a drinking problem. Your mother loves you very much. You realise you are a special boy, and that you have a powerful vision. Through the purest force of will you achieve notoriety, then high office, and eventually, after great struggle, a unique place in history. Who are you? Well, you’re not Adolf Hitler. You’re actually Arnold Schwarzenegger. Readers of Be Useful: Seven Tools for Life may be struck by an intrusive thought: Schwarzenegger would have played a terrific Nazi. It’s not merely...