For the man, the possibility was there, and so the blood of Genghis Khan runs through a large segment of today’s human population. By definition, only a few men can achieve greatness, but for the few men who do, the gains have been real. And we are descended from those great men much more than from other men. Remember, most of the mediocre men left no descendants at all.

This is a fascinating article, and it happens to be tightly bound with my own views on gender and equality -- i.e. we are this way for reasons that don't care, and it is best to 1) understand those reasons, 2) accept them as truths, and 3) do what we can to remove the sharp edges using reason and a general desire for the humanist ideal.