Civilizing the aborigines means adopting them as your own, living in their midst, and cultivating fellow-feeling, in short loving them. How is it possible for a Hindu to do this ? His whole life is one anxious effort to preserve his caste. Caste is his precious possession which he must save at any cost. He cannot consent to lose it by establishing contact with the aborigines the remnants of the hateful Anary as of the Vedic days.