“Whether you extrapolate from Machiavelli or Castiglione, a kind of unworthy wisdom has stood the test of time in statecraft: you should have principles to make your conduct predictable, but at the same time know that you are limiting your options. It works if you are strong because you can force others to conform; but if you are weak, then having no principles means you have limitless options for action and can adjust through flexibility to acts dictated by others.”