“In the face of hard realities, Thucydides embodied the dual concern of classical realism, consciousness of external threats while being wary of our capacity for self-destruction, to fall prey to irrational emotions and false hope. An age of blood and iron is well and truly now underway, and the bitter winds of economic warfare are only just beginning to blow back on us all. It is not a bad time, then, to think through what it means to be prudent, while avoiding excess brutality and the corruption of our polities. Thucydides’ realism, austere yet humane, should both shake and fortify us in the hard days ahead.”—Patrick Porter, “Thucydides was a Realist.” Engelsbergideas.com. April 1, 2022.