“The great presidents never forget the principles of the republic and seek to preserve and enhance them--in the long run--without undermining the needs of the moment. Bad presidents simply do what is expedient, heedless of principles. But the worst presidents are those who adhere to principles regardless of what the fortunes of the moment demand.[...]In preventing the unintended empire from destroying the republic, the critical factor will not be the balance of power among the branches of government, but rather a president who is committed to that constitutional balance, yet willing to wield power in his own right. In orderr to do this, the president must grasp the insufficiency of both the idealist and the realist positions. The idealists, whether of the neoconservative or the liberal flavor, don't understand that it is necessary to master the nature of power in order to act according to moral principles. The realists don't understand the futility of power without a moral core.”