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Life

“Life is planetary exuberance, a solar phenomenon; it is the local—though astronomically proportioned—transformation of the earth’s air, water, and sunlight into cellular tissue; it is a complex pattern of growth and death, expansion and contraction, change and decay; it is matter gone wild yet capable of choosing the direction of its movement in order to postpone indefinitely thermodynamic equilibrium—that is, death. And by extension, when life takes human form, it is a question the universe asks itself.”

— Lynn Margulis and Dorion Sagan, What Is Life?