"Big enough to undermine the idea of creation but simple enough to be stated in a sentence, the theory of natural selection is a masterpiece."
"Charles Darwin had a big idea, arguably the most powerful idea ever. And like all the best ideas it is beguilingly simple. In fact, it is so staggeringly elementary, so blindingly obvious that although others before him tinkered nearby, nobody thought to look for it in the right place."
"Natural selection's explanatory power is not just about life on this planet: it is the only theory so far suggested that could, even in principle, explain life on any planet. If life exists elsewhere in the universe - and my tentative bet is that it does - some version of evolution by natural selection will almost certainly turn out to underlie its existence. Darwin's theory works equally well no matter how strange and alien and weird that extraterrestrial life may be - and my tentative bet is that it will be weird beyond imagining."
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