All of the virtues depend upon truth, and truth depends upon them all. Final truth in this world is unattainable, but its pursuit leads the individual away from unfreedom. The temptation to believe what feels right assails us at all times from all directions. Authoritarianism begins when we can no longer tell the difference between the true and the appealing. The cynic who decides that there is no truth is the citizen who welcomes the tyrant.

Since homo sapiens can survive only by unrestrained racial killing, a Jewish triumph of reason over impulse would mean the end of the species. What a race needed, thought Hitler, was a “worldview” that permitted it to triumph, which meant, in the final analysis, “faith” in its own mindless mission.

American and British forces reached none of the bloodlands and saw none of the major killing sites. It is not just that American and British forces saw none of the places where the Soviets killed, leaving the crimes of Stalinism to be documented after the end of the Cold War and the opening of the archives. It is that they never saw the places where the Germans killed, meaning that understanding of Hitler’s crimes has taken just as long. The photographs and films of German concentration camps were the closest that most westerners ever came to perceiving the mass killing. Horrible though these images were, they were only hints at the history of the bloodlands. They are not the whole story; sadly, they are not even an introduction.

In the politics of eternity, the seduction by a mythicized past prevents us from thinking about possible futures. The habit of dwelling on victimhood dulls the impulse of self-correction. Since the nation is defined by its inherent virtue rather than by its future potential, politics becomes a discussion of good and evil rather than a discussion of possible solutions to real problems. Since the crisis is permanent, the sense of emergency is always present; planning for the future seems impossible or even disloyal. How can we even think of reform when the enemy is always at the gate? If

When Americans think of freedom, we usually imagine a contest between a lone individual and a powerful government. We tend to conclude that the individual should be empowered and the government kept at bay. This is all well and good. But one element of freedom is the choice of associates, and one defense of freedom is the activity of groups to sustain their members. This is why we should engage in activities that are of interest to us, our friends, our families. These need not be expressly political: Václav Havel, the Czech dissident thinker, gave the example of brewing good beer. Insofar as we take pride in these activities, and come to know others who do so as well, we are creating civil society. Sharing in an undertaking teaches us that we can trust people beyond a narrow circle of friends and families, and helps us to recognize authorities from whom we can learn.

We might be tempted to think that our democratic heritage automatically protects us from such threats. This is a misguided reflex. Our own tradition demands that we examine history to understand the deep sources of tyranny, and to consider the proper responses to it. We are no wiser than the Europeans who saw democracy yield to fascism, Nazism, or communism in the twentieth century. Our one advantage is that we might learn from their experience. Now is a good time to do so.

When the mass murder of Jews is limited to an exceptional place and treated as the result of impersonal procedures, then we need not confront the fact that people not very different from us murdered other people not very different from us at close quarters.

Fascists despised the small truths of daily existence, loved slogans that resonated like a new religion, and preferred creative myths to history or journalism. They used new media, which at the time was radio, to create a drumbeat of propaganda that aroused feelings before people had time to ascertain facts. And now, as then, many people confused faith in a hugely flawed leader with the truth about the world we all share. Post-truth is pre-fascism.

Those who accept eternity politics do not expect to live longer, happier, or more fruitful lives. They accept suffering as a mark of righteousness if they think that guilty others are suffering more. Life is nasty, brutish, and short; the pleasure of life is that it can be made nastier, more brutish, and shorter for others.

Beware the one-party state: the parties that remade states and suppressed rivals were not omnipotent from the start. They exploited a historic moment to make political life impossible for their opponents. So support the multi-party system and defend the rules of democratic elections. Vote in local and state elections while you can. Consider running for office.

Before you deride the “mainstream media,” note that it is no longer the mainstream. It is derision that is mainstream and easy, and actual journalism that is edgy and difficult. So try for yourself to write a proper article, involving work in the real world: traveling, interviewing, maintaining relationships with sources, researching in written records, verifying everything, writing and revising drafts, all on a tight and unforgiving schedule.