The Key to the Universe (1977)
Context: In a sense, human flesh is made of stardust.
Every atom in the human body, excluding only the primordial hydrogen atoms, was fashioned in stars that formed, grew old and exploded most violently before the Sun and the Earth came into being. The explosions scattered the heavy elements as a fine dust through space. By the time it made the Sun, the primordial gas of the Milky Way was sufficiently enriched with heavier elements for rocky planets like the Earth to form. And from the rocks atoms escaped for eventual incorporation in living things: carbon, nitrogen, oxygen, phosphorus and sulphur for all living tissue; calcium for bones and teeth; sodium and potassium for the workings of nerves and brains; the iron colouring blood red… and so on.
No other conclusion of modern research testifies more clearly to mankind’s intimate connections with the universe at large and with the cosmic forces at work among the stars.
“This earth, every one of the billions of individual cells of your body, and every atom of matter, began as an intangible form of energy.”
Think and Grow Rich (1938) p. 64
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Napoleon Hill 104
American author 1883–1970Related quotes

“Body cells replace themselves every month. Even at this very moment”
Source: A Wild Sheep Chase: A Novel (1982), Chapter 25, Transit Completed at Movie Theater, On to The Dolphin Hotel
Context: "Body cells replace themselves every month. Even at this very moment," she said, thrusting a skinny back of her hand before my eyes, "most everything you think you know about me is nothing more than memories.”

Source: Ashtanga Yoga Primer, 1981, p.11

How Many People Can Live on Planet Earth? (BBC Horizon, 2009)

"A Universe From Nothing" by Lawrence Krauss, AAI 2009 http://www.youtube.com/watch?v=7ImvlS8PLIo#t=16m49s (16:50-17:23)
Context: The amazing thing is that every atom in your body came from a star that exploded. And, the atoms in your left hand probably came from a different star than your right hand. It really is the most poetic thing I know about physics: You are all stardust. You couldn’t be here if stars hadn’t exploded, because the elements - the carbon, nitrogen, oxygen, iron, all the things that matter for evolution - weren’t created at the beginning of time. They were created in the nuclear furnaces of stars, and the only way they could get into your body is if those stars were kind enough to explode. So, forget Jesus. The stars died so that you could be here today.

“Every cell from a cell.”
Omnis cellula e cellula

The Highest of the High (1953)
Context: Consciously or unconsciously, directly or indirectly, each and every creature, each and every human being — in one form or the other — strives to assert individuality. But when eventually man consciously experiences that he is Infinite, Eternal and Indivisible, then he is fully conscious of his individuality as God, and as such experiences Infinite Knowledge, Infinite Power and Infinite Bliss.