QUOTE : One of the world’s most prominent philosophers, Jürgen Habermas, was for decades a defender of the Enlightenment view that only secular reason should be used in the public square.9 Habermas has recently startled the philosophical establishment, however, with a changed and more positive attitude toward religious faith. He now believes that secular reason alone cannot account for what he calls “the substance of the human.” He argues that science cannot provide the means by which to judge whether its technological inventions are good or bad for human beings. To do that, we must know what a good human person is, and science cannot adjudicate morality or define such a thing.10 Social sciences may be able to tell us what human life is but not what it ought to be.11 The dream of nineteenth-century humanists had been that the decline of religion would lead to less warfare and conflict. Instead the twentieth century has been marked by even greater violence, performed by states that were ostensibly nonreligious and operating on the basis of scientific rationality. Habermas tells those who are still confident that “philosophical reason . . . is capable of determining what is true and false” to simply look at the “catastrophes of the twentieth century—religious fascist and communist states, operating on the basis of practical reason—to see that this confidence is misplaced.”12 Terrible deeds have been done in the name of religion, but secularism has not proven to be an improvement.