Ideas matter, and especially to intellectuals like President Obama. He is not a rigid ideologue and is capable of flexible maneuvering. But his interpretation of history, his attitude toward sovereignty, and his confidence in multilateral institutions have shaped his views of American power and of American leadership in ways that distinguish him from previous presidents. On Libya, his deference to the UN Security Council and refusal to serve as coalition leader show that he cares more about restraining America than about accomplishing any particular result in Libya. He views Libya and the whole Arab Spring as relatively small distractions from his broader strategy for breaking with the history of U.S. foreign policy as it developed in the last century. The critics who accuse Obama of being adrift in foreign policy are mistaken. He has clear ideas of where he wants to go. The problem for him is that, if his strategy is set forth plainly, most Americans will not want to follow him.