The problem is that religion tends to give people bad reasons to be good.

[I]t is difficult to imagine a set of beliefs more suggestive of mental illness than those that lie at the heart of many of our religious traditions.

The science of morality is about maximizing psychological and social health. It's really no more inflammatory than that.

Many scientists have been drawn to Buddhism out of a sense that the Western tradition has delivered an impoverished conception of basic, human sanity. In the West, if you speak to yourself out loud all day long, you are considered crazy. But speaking to yourself silently - thinking incessantly - is considered perfectly normal.

The idea, therefore, that religious faith is somehow a sacred human convention—distinguished, as it is, both by the extravagance of its claims and by the paucity of its evidence—is really too great a monstrosity to be appreciated in all its glory. Religious faith represents so uncompromising a misuse of the power of our minds that it forms a kind of perverse, cultural singularity—a vanishing point beyond which rational discourse proves impossible.

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.

If our well-being depends upon the interaction between events in our brains and events in the world, and there are better and worse ways to secure it, then some cultures will tend to produce lives that are more worth living than others; some political persuasions will be more enlightened than others; and some world views will be mistaken in ways that cause needless human misery.