Perhaps one day we will do “everything that we can to protect our people and the timeless values that we stand for.” But today, we won’t even honestly describe the motivations of our enemies. And in the act of lying to ourselves, we continue to pay lip service to the very delusions that empower them.

The same failure of liberalism is evident in Western Europe, where the dogma of multiculturalism has left a secular Europe very slow to address the looming problem of religious extremism among its immigrants. The people who speak most sensibly about the threat that Islam poses to Europe are actually fascists. To say that this does not bode well for liberalism is an understatement: It does not bode well for the future of civilization.

Perhaps one day we will do “everything that we can to protect our people and the timeless values that we stand for.” But today, we won’t even honestly describe the motivations of our enemies. And in the act of lying to ourselves, we continue to pay lip service to the very delusions that empower them.

We will see that the greatest problem confronting civilization is not merely religious extremism: rather, it is the larger set of cultural and intellectual accommodations we have made to faith itself.

Everything we do is for the purpose of altering consciousness. We form friendships so that we can feel certain emotions, like love, and avoid others, like loneliness. We eat specific foods to enjoy their fleeting presence on our tongues. We read for the pleasure of thinking another person's thoughts.

As many critics of religion have pointed out, the notion of a creator poses an immediate problem of an infinite regress. If God created the universe, what created God? To say that God, by definition, is uncreated simply begs the question. Any being capable of creating a complex world promises to be very complex himself. As the biologist Richard Dawkins has observed repeatedly, the only natural process we know of that could produce a being capable of designing things is evolution.

Unreason is now ascendant in the United States—in our schools, in our courts, and in each branch of the federal government.