The atheist is cheating whenever he makes a moral judgment, acting as though it has an objective reference, when his philosophy in fact precludes it.
I'm not saying that atheists can't act morally or have moral knowledge. But when I ascribe virtue to an atheist, it's as a theist who sees the atheist as conforming to objective moral values. The atheist, by contrast, has no such basis for morality. And yet all moral judgments require a basis for morality, some standard of right and wrong.
There is an immediate payoff to intelligent design: it destroys the atheistic legacy of Darwinian evolution. Intelligent design makes it impossible to be an intellectually fulfilled atheist.
Naturalism is the view that the physical world is a self-contained system that works by blind, unbroken natural laws. Naturalism doesn't come right out and say there's nothing beyond nature. Rather, it says that nothing beyond nature could have any conceivable relevance to what happens in nature. Naturalism's answer to theism is not atheism but benign neglect. People are welcome to believe in God, though not a God who makes a difference in the natural order.
The problem of good as it faces the atheist is this: Nature, which is the nuts-and-bolts reality for the atheist, has no values and thus can offer no grounding for good and evil. Values on the atheist view are subjective and contingent.
