Richard Dawkins :
"I think there is a difference between arguing robustly against somebody and being intolerant of them. Intolerance is refusing to listen, or not bothering to argue because you sort of simply think they're beyond the pale. I suppose I occasionally do that - but who doesn't? - when you're faced with some of the provocations that one occasionally gets. But if somebody is honestly interested in working together to get to the truth, if they're ignorant - we are all ignorant of something, you know, about most things - I'm very very happy to have a discussion with anybody who I hope is amicable. If I feel somebody is deliberately deceiving because they've got some sort of agenda, I might be intolerant of that."