For the community of reason to thrive, we need to regain our respect for reason and also to bring it closer down to earth. And it is only by using our reason that as a society we can debate our differences and come to, if not agreement, then at least a respectful accommodation.
The idea that unconscious biological forces drive our beliefs and actions would seem to pose a real threat to our free will. We like to think that we make choices on the basis of our own conscious deliberations. But isn’t all that thinking things over irrelevant if our final decision was already written in our genetic code? And doesn’t the whole edifice of personal responsibility collapse if we accept that “my genes made me do it”?