The most important component of the incompatibility between science and religion is religion’s dependence on faith. - Jerry Coyne

Even more than religious belief, acceptance or denial of evolution is a test of character. For if you deny evolution is true, you are either pandering to the public even though you know better (showing that you’re ambitious but lack character), are truly ignorant of the facts (which means you can’t be trusted to be informed about crucial issues), or are a flat-out creationist (showing that you’re batshit crazy).

I will have achieved my aim if, by the end of this book, you demand that people produce good reasons for what they believe—not only in religion, but in any area in which evidence can be brought to bear. I’ll have achieved my aim when people devote as much effort to choosing a system of belief as they do to choosing their doctor. I’ll have achieved my aim If the public stops awarding special authority about the universe and the human condition to preachers, imams, and clerics simply because they are religious figures. And above all, I’ll have achieved my aim if, when you hear someone described as a “person of faith,” you see it as criticism rather than praise.

This book lays out the main lines of evidence for evolution. For those who oppose Darwinism purely as a matter of faith, no amount of evidence will do—theirs is a belief not based on reason.