Ibid., pp. 58–59; William H. McNeill, Plagues and Peoples (Garden City, NY, 1976), p. 60; Patrick Olivelle, ed. and trans., Samnayasa Upanisads: Hindu Scriptures on Asceticism and Renunciation (New York and Oxford, 1992), p. 34; Doniger, Hindus, p. 171