Atheist. Biologist. Writer. Thinker. Richard Dawkins has developed an international reputation of spreading the word that evolution happened and that there is no "intelligent design" or higher being, as you might gather from the title of his book "The God Delusion."
But no matter what you think about his convictions, his ideas have gone viral - including the word "meme."
CNN caught up with Dawkins while he was passing through Atlanta earlier this year. His next U.S. tour is in October.
Here is an edited transcript of part of the conversation. Watch the video above for a more focused look at Dawkins' ideas about evolution vs. intelligent design.