Hope is easy; knowledge is hard. Science is the one domain in which we human beings make a truly heroic effort to counter our innate biases and wishful thinking. Science is the one endeavor in which we have developed a refined methodology for separating what a person hopes is true from what he has good reason to believe.

When the stakes are this high- when calling God by the right name can make the difference between eternal happiness and eternal suffering, it is impossible to respect the beliefs of others who don't believe as you do.

We are now in the 21st century: all books, including the Koran, should be fair game for flushing down the toilet without fear of violent reprisal.

George Bush says he speaks to god every day, & Christians love him for it. If George Bush said he spoke to god through his hair dryer, they would think he was mad. I fail to see how the addition of a hair dryer makes it any more absurd.

It seems to me patently obvious that we can no more respect and tolerate vast differences in notions of human well-being than we can respect or tolerate vast differences in the notions about how disease spreads, or in the safety standards of buildings and airplanes.

The problem I want to talk to you about tonight is the problem of belief. What does it mean to believe? We use this word all the time, and I think behind it lurk some really extraordinary taboos and confusions. What I want to argue tonight is that how we talk about belief- how we fail to criticize or criticize the beliefs of others, has more importance to us personally, more consequence to us personally and to civilization than perhaps anything else that is in our power to influence.

Anyone familiar with my work knows that I am extremely critical of all religious faiths.