As my old mammy said - "Constant dripping, wears away a stone" - any drip knows that.

My feeling is that until everyone can speak the same language, pray to the same god, and generally suffer the same drought/flood, wars are inevitable, songs can only be a paliative. And once English (of whatever patois) becomes the lingua Franca (contentious in itself) it will be the source of irritation because of that. Take the rise and rise of the Welsh language as an example.

Our only hope is that the spectre of global warming might just be a meeting point for all humanity, if only there wasn't quite so much of it.