Hindu Polity: A Constitutional History of India in Hindu Times c49.15

c49.15

§ 360. Only such a theory would explain the great fact that although Chandragupta's was "the mightiest throne then existing in the world" (Rhys Davids) and so it remained under his two successors, and that although the Maurya emperors found their next-door neighbour, the Seleucid empire, weak and crumbling, yet no inclination was exhibited to go beyond the Hindu Kush, the natural frontier of the India of those days.