All the intelligence and talent in the world can't make a singer. The voice is a wild thing. It can't be bred in captivity. It is a sport, like the silver fox. It happens.
You want to play in every game, and you especially don't want to be in the penalty box for five minutes and give the other team a chance to get a power play, and you don't want to hurt anyone on the other team.
In Italy, on the breaking up of the Roman Empire, society might be said to be resolved into its original elements, - into hostile atoms, whose only movement was that of mutual repulsion.