Michael Shermer in Scientific American:
Among many metrics available to track the skeptical movement is the ascension of four books to the august heights of the New York Times best-seller list—Sam Harris’s Letter to a Christian Nation (Knopf, 2006), Daniel Dennett’s Breaking the Spell (Viking, 2006), Christopher Hitchens’s God Is Not Great (Hachette Book Group, 2007) and Richard Dawkins’s The God Delusion (Houghton Mifflin, 2006)—that together, in Dawkins’s always poignant prose, “raise consciousness to the fact that to be an atheist is a realistic aspiration, and a brave and splendid one. You can be an atheist who is happy, balanced, moral and intellectually fulfilled.” Amen, brother. I suggest that we raise our consciousness one tier higher for the following reasons.
Positive assertions are necessary. Champion science and reason, as Charles Darwin suggested: “It appears to me (whether rightly or wrongly) that direct arguments against Christianity & theism produce hardly any effect on the public; & freedom of thought is best promoted by the gradual illumination of men’s minds which follow[s] from the advance of science. It has, therefore, been always my object to avoid writing on religion, & I have confined myself to science.”