Via God is for Suckers I just found this wonderful talk by Steven Weinberg, 1979 Nobel Laureate in Physics.
Besides producing a cogent argument for why the idea of a designer of the Universe is totally unsupported by what we know, it also a good mine of quotes that you can use to upset your religious friends, like:
With or without religion, good people can behave well and bad people can do evil; but for good people to do evil—that takes religion.
And:
I am all in favor of a dialogue between science and religion, but not a constructive dialogue. One of the great achievements of science has been, if not to make it impossible for intelligent people to be religious, then at least to make it possible for them not to be religious. We should not retreat from this accomplishment.
The latter quote is, at least in part, derived from Dawkins:
I can’t help feeling that such a position, though logically sound, would have left one feeling pretty unsatisfied, and that although atheism might have been logically tenable before Darwin, Darwin made it possible to be an intellectually fulfilled atheist.

