Chemistry ceases to improve when one element is found from which all others are deductible. Physics ceases to progress when one force is found of which all others are manifestations. So religion ceases to progress when unity is reached, which is the case with Hinduism.
Swami VivekanandaI must remark that what I mean by our religion working upon the nations outside of India comprises only the principles, the background, the foundation upon which that religion is built.
Swami VivekanandaThat which is nearest is least observed. The Atman is the nearest of the near, therefore the careless and the unsteady mind gets no clue to it. But the person who is alert, calm, self-restrained, and discriminating ignores the external world and, diving more and more into the inner world, realizes the glory of the Atman and becomes great.
Swami Vivekananda