Richard Dawkins is the man who introduced us to the concept of the meme ( a self replicating unit of culture) in his renowned book the Selfish Gene. Since then he has written a score of books on evolutionary biology in an understandable language. He is also a staunch critic of creationism (including its current American version intelligent design). During his TED speech he urges all atheists to stand up against the mixture of politics and religion, since the only place in the world were Church/Mosque/Temple/Whatever and State are still strictly kept separate is Western Europe (and Turkey). This kind of subject has the danger of either becoming tedious or ridiculous. Dawkins is neither of these. He talks eloquently and, above all, he's very funny (as well as being right).
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