Let him, for instance, compare the classes of Europe with the castes of India.
There aristocracy is far more awful, because it is far more intellectual.

It is seriously felt that the scale of classes is a scale of spiritual values; that the baker is better than the butcher in an invisible and sacred sense.

But no Christianity, not even the most ignorant or perverse, ever suggested that a baronet was better than a butcher in that sacred sense.

No Christianity, however ignorant or extravagant, ever suggested that a duke would not be damned.

In pagan society there may have been (I do not know) some such serious division between the free man and the slave.