We are, perhaps uniquely among the earth’s creatures, the worrying animal. We worry away our lives, fearing the future, discontent with the present, unable to take in the idea of dying, unable to sit still.

Lewis Thomas (1913-1993) American physician, poet, essayist, researcher

“The Youngest and Brightest Thing Around,” The Medusa and the Snail: More Notes of a Biology Watcher (1979)
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