From this conviction follows a highly sophisticated notion: a law of nature must apply uniformly and universally. In renaissance Europe, this realization led to the birth of classical physics. In ancient India it had equally profound consequences. While the rest of Vedic India was studying the natural world, more or less in line with other scientifically precocious civilizations such as Greece and China, the forest civilization of the Upanishads took a turn unparalleled in the history of science. It focused on the medium of knowing: the mind.
