"The truth, however, is that most Muslims appear to be "fundamental- ist" in the Western sense of the word — in that even "moderate" approaches to Is… - Sam Harris

What is the meaning of life? What is our purpose on earth? These are some of the great, false questions of religion. We need not answer them, for they are badly posed, but we can live our answers all the same. At a minimum, we can create the conditions for human flourishing in this life — the only life of which any of us can be certain. That means we should not terrify our children with thoughts of hell or poison them with hatred for infidels. We should not teach our sons to consider women their future property or convince our daughters that they are property even now. And we must decline to tell our children that human history began with bloody magic and will end with bloody magic in a glorious war between the righteous and the rest.

This is not (as you have charged) to paint religion with a broad brush. I am very quick to distinguish gradations of bad ideas; some clearly have no consequences at all (or at least not yet); some put civilization itself in peril. The problem with dogmatism, however, is that one can never quite predict how terrible its costs will be. To use one of my favorite examples, consider the Christian dogma that human life begins at the moment of conception: On its face, this belief seems likely to only improve our world. After all, it is the very quintessence of a life-affirming doctrine.

Enter embryonic stem-cell research. Suddenly, this “life begins at the moment of conception” business becomes the chief impediment to medical progress. Who would have thought that such an innocuous idea could unnecessarily prolong the agony of tens of millions of people? This is the problem with dogmatism, no matter how seemingly benign: it is unresponsive to reality. Dogmatism is a failure of cognition (as well as a commitment to such failure); it is the state of being closed to new evidence and new arguments. And this frame of mind is rightly despised in every area of culture, on every subject, except where it goes by the name of “religious faith.” In this guise, parading its most grotesque faults as virtues, it is granted a special dispensation, even in the pages of Nature.

You can do what you decide to do - but you cannot decide what you will decide to do.