It seems to me patently obvious that we can no more respect and tolerate vast differences in notions of human well-being than we can respect or tolerate vast differences in the notions about how disease spreads, or in the safety standards of buildings and airplanes.

Despite a full century of scientific insights attesting to the antiquity of the earth, more than half of our neighbors believe that the entire cosmos was created six thousand years ago. This is, incidentally, about a thousand years after the Sumerians invented glue.

It is time we realize that belief is not a private matter. As a man believes, so he will act. Believe that you are a member of a chosen people, awash in the salacious exports of an evil culture that is turning your children away from God, believe that you will be rewarded with an eternity of unimaginable delights by dealing death to these infidels—and flying a plane into a building is only a matter of being asked to do it.

The freedom to think out loud on certain topics, without fear of being hounded into hiding or killed, has already been lost.

The deity who stalked the deserts of the Middle East millennia ago-and who seems to have abandoned them to bloodshed in his name ever since-is no one to consult on questions of ethics.

Liberals tend to understand that a person can be lucky or unlucky in all matters relevant to his success. Conservatives, however, often make a religious fetish of individualism. Many seem to have absolutely no awareness of how fortunate one must be to succeed at anything in life, no matter how hard one works. One must be lucky to be able to work. One must be lucky to be intelligent, physically healthy, and not bankrupted in middle age by the illness of a spouse.

It is time that scientists and other public intellectuals observed that the contest between faith and reason is zero-sum.