> [Richard Dawkins] Already one of the world’s foremost evolutionary biologists

Minor nit: I don't think Dawkins is actually a foremost evolutionary biologist; though he's the foremost popularizer of evolutionary biology. I do enjoy his writing on it.

single page: http://www.smithsonianmag.com/arts-culture/What-Defines-a-Me...

> They interact with each other and with other mental forces in the same brain, in neighboring brains

I prefer this description than Dawkins' because it includes competition and combination within the one brain, something that genes cannot do within the one body.