MOYERS: Is evolution a theory, not a fact?
DAWKINS: Evolution has been observed. It's just that it hasn't been observed while it's happening.
MOYERS: What do you mean it's been observed.
DAWKINS: The consequences of. It is rather like a detective coming on a murder after the scene. And you… the detective hasn't actually seen the murder take place, of course. But what you do see is a massive clue. Now, any detective…
MOYERS: Circumstantial evidence.
DAWKINS: Circumstantial evidence, but masses of circumstantial evidence. Huge quantities of circumstantial evidence. It might as well be spelled out in words of English. Evolution is true. I mean it's as circumstantial as that, but it's as true as that.