“The only thing that guarantees an open-ended collaboration among human beings, the only thing that guarantees that this project is truly open-ended, is a willingness to have our beliefs and behaviors modified by the power of conversation.”

“It is time we recognized that the only thing that permits human beings to collaborate with one another in a truly open-minded way is their willingness to have their beliefs modified by new facts.”

“One of the worst things about breaking the law is that it puts one at odds with an indeterminate number of other people. This is among the many corrosive effects of having unjust laws: They tempt peaceful and (otherwise) honest people to lie so as to avoid being punished for behavior that is ethically blameless.”

“We have a choice. We have two options as human beings. We have a choice between conversation and war. That's it. Conversation and violence. And faith is a conversation stopper.”

“According to the most common interpretation of biblical prophecy, Jesus will return only after things have gone horribly awry. Imagine the consequences if any significant component of the U.S. government believed that the world was about to end and that its ending would be glorious. The fact that nearly half of the American population apparently believes this should be considered a moral and intellectual emergency.”

“In the face of God's obvious inadequacies, the pious have generally held that one cannot apply earthly norms to the Creator of the universe. This argument loses its force the moment we notice that the Creator who purports to be beyond human judgment is consistently ruled by human passions— jealousy, wrath, suspicion, and the lust to dominate. A close study of our holy books reveals that the God of Abraham is a ridiculous fellow—capricious, petulant, and cruel—and one with whom a covenant is little guarantee of health or happiness. If these are the characteristics of God, then the worst among us have been created far more in his image than we ever could have hoped.”

“Man is manifestly not the measure of all things. This universe is shot through with mystery. The very fact of its being, and of our own, is a mystery absolute, and the only miracle worthy of the name.”