It is still fashionable to believe that how you organize yourself religiously in this life may matter for eternity. Unless we can erode the prestige of that kind of thinking, we're not going to be able to undermine these divisions in our world.

All I'm arguing for really is that we should have a conversation where the best ideas really thrive, where there's no taboo against criticizing bad ideas, and where everyone who shows up, in order to get their ideas entertained, has to meet some obvious burdens of intellectual rigor and self-criticism and honesty-and when people fail to do that, we are free to stop listening to them. What religion has had up until this moment is a different set of rules that apply only to it, which is you have to respect my religious certainty even though I'm telling you I arrived at it irrationally.

And while Protestant reformers broke with Rome on a variety of counts, their treatment of their fellow human beings was no less disgraceful. Public executions were more popular than ever: heretics were still reduced to ash, scholars were tortured and killed for impertinent displays of reason, and fornicators were murdered without a qualm.

Religious faith obscures uncertainty where uncertainty . . . exists, allowing the unknown, the implausible, and the . . . false to achieve primacy over the facts.

It is taboo in our society to criticize a persons religious faith... these taboos are offensive, deeply unreasonable, but worse than that, they are getting people killed. This is really my concern. My concern is that our religions, the diversity of our religious doctrines, is going to get us killed. I'm worried that our religious discourse- our religious beliefs are ultimately incompatible with civilization.

It was even possible for the most venerated patriarchs of the Church, like St. Augustine and St. Thomas Aquinas, to conclude that heretics should be tortured (Augustine) or killed (Aquinas).

A true spiritual practitioner is someone who has discovered that it is possible to be at ease in the world for no reason, if only for a few moments at a time, and that such ease is synonymous with transcending the apparent boundaries of the self.