Last weekend William Lane Craig debated Sam Harris, one of the leading lights of the New Atheist movement, on the question whether there can be ethics without God. Harris' position is interesting in that, though he's an atheist, he's not a relativist or subjectivist. In fact, he spends much of his first address in the debate pressing his considerable rhetorical skills into the service of criticizing relativism. Nevertheless, Harris' reluctance to embrace subjectivism comes under Craig's scrutiny and during the course of the nine-part video of the debate Harris' position just unravels.
In fact, by his second address Harris was left with no response to Craig's challenge to explain the ground upon which he based his ethical views so he retreated to more familiar terrain, launching a philippic against religion in general and Christianity in particular. He spent much time on the ethical shortcomings of the Bible and expatiated on the problem of evil, all of which were, unfortunately for him, irrelevant to the debate. Harris, in effect, switched the topic from whether God is necessary for moral good and evil to the question whether the Biblical concept of God is morally tenable - an interesting question, to be sure, but not germane to the topic of the evening.
Even so, Craig did a good job of holding Harris' feet to the fire. It's an enlightening debate and one from which much can be learned about the problem that moral obligation poses for the thoughtful atheist who wishes to avoid nihilism.
