Astaire way to humanity

People sometimes say that there's no such thing as human nature. Actually, it's not so much people who say it, since they mostly have more sense on this particular matter; it's a narrower category from within 'people' - students of the humanities and social sciences who have got carried away with the (true) thought that culture is enormously important in shaping human attitudes, wants and behaviour patterns, to the point of overlooking the great weight of natural uniformities, and being willing to utter the sort of (false) denial to which I've referred. It's good to see, therefore, evidence of such natural uniformities which have a significance for the cultural life of human beings. This, too, should be obvious anyway from a moment's reflection: since it's not just a need for food or an aversion to physical pain that we share as humans; there's also the small matter of our linguistic capacities. But it's interesting to note, all the same, that one of the universals of human nature, founded in our biology, in the very constitution of the human brain, is dance.