Excerpt
Kissinger understood something that too many Americans, on the left and right, find difficult to grasp: Power and morality aren’t opposites. Rather, power is the platform that makes moral action possible for a state. And morality isn’t a set of rules and laws that states are expected to obey. Rather, in international relations, morality involves creating an order that prevents the anarchy and slaughter of great-power warfare. Such an order gains legitimacy not by its perfect adherence to a religious or secular moral code, but by its ability to preserve values and conditions that allow civilizations, and the human beings who inhabit them, to flourish.