Richard Dawkins

What Darwinian theory shows us is that all human races are extremely close to each other. None of them is in any sense ancestral to any other; none of them is more primitive than any other. We are all modern races of exactly equal status, evolutionarily speaking.

It's an ancient idea that the leader of a democracy should not be the cleverest but the most average. That's an arguable point, but the world has decided otherwise - except in America, where it still divides the country right down the middle.