The babies give their first cry untaught and no one teaches them to take the suck. The birds fly and the fishes swim and nobody has seen a school where these creatures were taught to do so. The flocks of birds, which fly overhead in certain formations apparently, led efficiently by one of them and yet there is nobody to train them for it. They learn it by themselves and there is neither a trainer nor a school from where they take their lessons.

The early humans too were as efficient and