"Descartes constructed as noble a road of science, from the point at which he found geometry to that to which he carried it, as Newton himself did after him. ... He carried this spirit of geometry and invention into optics, which under him became a completely new art."

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Two attempts have been made in the world to found social life: the one was upon religion, and the other was upon social necessity. The one was founded upon spirituality, the other upon materialism; the one upon transcendentalism, the other upon realism.

— Swami Vivekananda