A Short History of Chemistry (1937)
Context: In Alexandria two streams of knowledge met and fused together... The ancient Egyptian industrial arts of metallurgy, dyeing and glass-making... and... the philosophical speculations of ancient Greece, now tinged with ancient mysticism, and partly transformed into that curious fruit of the tree of knowledge which we call Gnosticism.... the result was the "divine" or "sacred" art (... also means sulphur) of making gold of silver.... during the first four centuries a considerable body of knowledge came into existence. The treatises written in Greek... in Alexandria, are the earliest known books on chemistry.... The treatises also contain much of an allegorical nature... sometimes described as "obscure mysticism."... the Neoplatonism which was especially studied in Alexandria... is not so negligible as has sometimes been supposed.... The study of astrology was connected with that of chemistry in the form of an association of the metals with the planets on a supposed basis of "sympathy". This goes back to early Chaldean sources but was developed by the Neoplatonists.
“Philosophers of ancient Greece and India sought an answer to this question [What is matter made of] centuries before Christ.”
Source: Understanding Chemistry (1999), p. 7
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C. N. R. Rao 40
Indian chemist 1934Related quotes
Since "the answers of the special sciences" do not reach "the horizon of total reality", they are given "without having to speak at the same time of 'God and the world.'" (p. 96)
Source: Leisure, the Basis of Culture (1948), The Philosophical Act, p. 95
But a no-one with a crown of light about his head. He would remember a verse from Pindar: "Man is a dream about a shadow. But when some splendour falls upon him from God, a glory comes to him and his life is sweet."
Neb [No-one] (1985)

George Bosworth Burch Early Medieval Philosophy (New York: King’s Crown Press, 1951) p. 5.
Of De Divisione Naturae.
Criticism

Autobiographical Essay (2001)
“There was an outflow of people from India before the fifteenth century BC.”
Ancient Indian Historical Tradition (1962)

"To the Indianapolis Clergy." The Iconoclast (Indianapolis, IN) (1883)

Quoted in an article, "Why Is There Something Rather Than Nothing?" http://www.csicop.org/sb/show/why_is_there_something_rather_than_nothing, by Victor Stenger (June 2006).