The author had tried to trace out the ethical thought of the ancient Hindus from the early Rig-Vedic period down to the age of the Mahabharata and the Dharma-Shastras. The period covered here witness indeed the rise and fall of Hindu culture, its very interesting evolution in successive periods under diverse historical conditions. Yet while there is a rich diversity of moral ideals, presented to us during these periods of Hindu history, a clear thread of unity ...