“We go about our daily lives understanding almost nothing of the world. We give little thought to the machinery that generates the sun light that makes life possible, to the gravity that glues us to an Earth that would otherwise sent us spinning off into space, or to the atoms of which we are made and on whose stability we fundamentally depend. Few of us spend much time wondering why nature is the way it is, where the cosmos came from, or whether it was always there, if time will one day flow backwards or whether there are ultimate limits to what humans can know. What is the smallest piece of matter, why we remember the past and not the future, and why there is the universe?”
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Carl Sagan 365
American astrophysicist, cosmologist, author and science ed… 1934–1996Related quotes

Source: David and Goliath: Underdogs, Misfits, and the Art of Battling Giants

The Need for Transcendence in the Postmodern World (1994)
Context: There appear to be no integrating forces, no unified meaning, no true inner understanding of phenomena in our experience of the world. Experts can explain anything in the objective world to us, yet we understand our own lives less and less. In short, we live in the postmodern world, where everything is possible and almost nothing is certain.

Beast and Man: The Roots of Human Nature (1979).

"Vestigial Instincts in Man", pp. 127–128
Savage Survivals (1916), Savage Survivals in Higher Peoples (Continued)

"We are Power" speech (1980)