Prof Daniel Dennett and Lord Winston present their arguments ahead of tonight's public debate

The debate on religion versus science will take place tonight at the British Council. This is the finale in the Rethink education public debate series, hosted by the thinktank Agora and Education Guardian. For details go to www.agora-education.org

Yes, says Prof Daniel Dennett
If religion isn't the greatest threat to rationality and scientific progress, what is? Perhaps alcohol, or television, or addictive video games. But although each of these scourges - mixed blessings, in fact - has the power to overwhelm our best judgment and cloud our critical faculties, religion has a feature of that none of them can boast: it doesn't just disable, it honours the disability. People are revered for their capacity to live in a dream world, to shield their minds from factual knowledge and make the major decisions of their lives by consulting voices in their heads that they call forth by rituals designed to intoxicate them.

No, says Lord Winston
Daniel Dennett would be unlikely to place a stake alongside Blaise Pascal, whose famous wager runs: "You cannot lose by professing belief in God - if He does not exist you lose nothing, and if He does exist, you will be rewarded in the afterlife." Dennett argues that it is better to live as if there is no God, attempting to make the world a rational and better place. He points out that it is costly building cathedrals and that churchgoing is a massive waste of time. An atheist will lose nothing if God does not exist - his or her memorial will be good deeds. And if there is a benevolent God, Dennett will find himself judged by the Almighty on his merits, not because of the disbelief he professes.