So great was Europe’s slaughter in the name of Christ that it created the very ideas and institutions that we cherish so deeply today. Only, it didn’t do this because religion was so wonderful, but precisely because quarrels in the name of it were so horrible. Religion, in other words, had grown so destructive to European civilization that it had to be caged by secular ideas like the separation of church and state, tolerance and liberalism in order to keep the peace. War wasn’t banished by these developments, of course, but in the West war in the name of religion was. Holy War had thus burned away the old world, and out of those ashes came the world we exist in today.