简介
"From the earliest records of Indian natural philosophy, which date from the 5th–3rd centuries BC, theories of nature were based on conceptions of material elements (fire, wind, water, earth, and space), vitalism (“animated atoms”), and dualisms of love and hate or action and reaction. The alchemist coloured metals and on occasion “made” gold, but he gave little importance to that. " *https://www.britannica.com