One of the greatest challenges facing civilization in the twenty-first century is for human beings to learn to speak about their deepest personal concerns-about ethics, spiritual experience, and the inevitability of human suffering-in ways that are not flagrantly irrational. We desperately need a public discourse that encourages critical thinking and intellectual honesty. Nothing stands in the way of this project more that the respect we accord religious faith.

There's no way to reconcile Islam with Christianity. This difference of opinion admits of compromise as much as a coin toss does.

Mysticism is a rational enterprise. Religion is not. The mystic has recognized something about the nature of consciousness prior to thought, and this recognition is susceptible to rational discussion. The mystic has reasons for what he believes, and these reasons are empirical. The roiling mystery of the world can be analyzed with concepts (this is science), or it can be experienced free of concepts (this is myticism). Religion is nothing more than bad concepts held in place of good ones for all time. It is the denial-at once full of hope and full of fear-of the vastitude of human ignorance.

I think there are universal principles that we should want to understand, but that are not necessarily good for us. We could recognise universal propensities which current cultures can't fully eradicate, which we would want to eradicate if we could. Let's say, a tendency for tribal violence. Or racism.

Theology is ignorance with wings.

Some ... sexist evil probably predates religion and can be ascribed to our biology, but there is no question that religion promulgates and renders sacrosanct attitudes toward women that would be unseemly in a brachiating ape.

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.