“The cosmos is within us. We are made of star-stuff. We are a way for the universe to know itself.”
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Carl Sagan 365
American astrophysicist, cosmologist, author and science ed… 1934–1996Related quotes

“We are the cosmos made conscious and life is the means by which the universe understands itself.”
Wonders of the Universe - Messengers

“Empirically speaking, we are made of star stuff. Why aren’t we talking more about that?”
Source: The Argonauts

Fragment No. 16
Variant translations:
We dream of a journey through the universe. But is the universe then not in us? We do not know the depths of our spirit. Inward goes the secret path. Eternity with its worlds, the past and the future, is in us or nowhere.
As translated in "Bildung in Early German Romanticism" by Frederick C. Beiser, in Philosophers on Education : Historical Perspectives (1998) by Amélie Rorty, p. 294
We dream of journeys through the cosmos — Is the cosmos not then in us? We do not know the depths of our own spirit. — The mysterious path leads within. In us, or nowhere, is eternity with its worlds — the past and the future.
Blüthenstaub (1798)
Context: Imagination places the future world for us either above or below or in reincarnation. We dream of travels throughout the universe: is not the universe within us? We do not know the depths of our spirit. The mysterious path leads within. In us, or nowhere, lies eternity with its worlds, the past and the future.

“Not only do we live among the stars, the stars live within us.”
Source: Death by Black Hole - And Other Cosmic Quandaries

Source: The Nature of the Physical World (1928), Ch. 13 Reality

Variant: We are star stuff harvesting sunlight.

The Greatest Story Ever Told, Natural History Magazine, March 1998, 2010-12-07 http://www.haydenplanetarium.org/tyson/read/1998/03/01/the-greatest-story-ever-told,
2000s

Wanderlust: A History of Walking (2001)
Source: Storming the Gates of Paradise: Landscapes for Politics
Context: Walking has been one of the constellations in the starry sky of human culture, a constellation whose three stars are the body, the imagination, and the wide-open world, and though all three exist independently, it is the lines drawn between them—drawn by the act of walking for cultural purposes—that makes them a constellation. Constellations are not natural phenomena but cultural impositions; the lines drawn between stars are like paths worn by the imagination of those who have gone before. This constellation called walking has a history, the history trod out by all those poets and philosophers and insurrectionaries, by jaywalkers, streetwalkers, pilgrims, tourists, hikers, mountaineers, but whether it has a future depends on whether those connecting paths are traveled still.