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Lewis Thomas

Lewis Thomas (November 25, 1913–December 3, 1993) was a physician, poet, etymologist, essayist, administrator, educator, policy advisor, and researcher.

Thomas was born in Flushing, New York and attended Princeton University and Harvard Medical School. He became Dean of Yale Medical School and New York University School of Medicine, and President of Memorial Sloan-Kettering Institute. His formative years as an independent medical researcher were at Tulane University School of Medicine.

He was invited to write regular essays in the New England Journal of Medicine, and won a National Book Award for the 1974 collection of those essays, The Lives of a Cell: Notes of a Biology Watcher. He also won a Christopher Award for this book. Two other collections of essays (from NEJM and other sources) are The Medusa and the Snail and Late Night Thoughts on Listening to Mahler's Ninth Symphony. His autobiography, The Youngest Science: Notes of a Medicine Watcher is a record of a century of medicine and the changes which occurred in it. He also published a book on etymology entitled Et Cetera, Et Cetera, poems, and numerous scientific papers.

Many of his essays discuss relationships among ideas or concepts using etymology as a starting point. Others concern the cultural implications of scientific discoveries and the growing awareness of ecology. In his essay on Mahler's Ninth Symphony, Thomas addresses the anxieties produced by the development of nuclear weapons.[1] Thomas is often quoted, given his notably eclectic interests and superlative prose style.

The Lewis Thomas Prize is awarded annually by The Rockefeller University to a scientist for artistic achievement.


“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 the idea of dying, unable to sit still.”
Lewis Thomas
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“The future is too interesting and dangerous to be entrusted to any predictable, reliable agency. We need all the fallibility we can get. Most of all, we need to preserve the absolute unpredictability and total improbability of our connected minds.”
Lewis Thomas
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“It is not a simple life to be a single cell, although I have no right to say so, having been a single cell so long ago myself that I have no memory at all of that stage in my life.”
Lewis Thomas
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“Have you noticed how often it happens that a really good idea -- the kind of idea that looks, as it approaches, like the explanation for everything about everything -- tends to hover near at hand when you are thinking hard about something quite different? There you are, halfway into a taxi, thinking about the condition of the cartilage in the right knee joint, and suddenly, with a whirring sound, in flies a new notion looking for a place to light. You'd better be sure you have a few bare spots, denuded of anything like thought, ready for its perching, or it will fly away into the dark.”
Lewis Thomas
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“If we had better hearing, and could discern the descants of sea birds, the rhythmic tympani of schools of mollusks, or even the distant harmonics of midges hanging over meadows in the sun, the combined sound might lift us off our feet.”
Lewis Thomas
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“The oldest, easiest to swallow idea was that the earth was man's personal property, a combination of garden, zoo, bank vault, and energy source, placed at our disposal to be consumed, ornamented, or pulled apart as we wished.”
Lewis Thomas
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“I am a member of a fragile species, still new to the earth, the youngest creatures of any scale, here only a few moments as evolutionary time is measured, a juvenile species, a child of a species. We are only tentatively set in place, error prone, at risk of fumbling, in real danger at the moment of leaving behind only a thin layer of of our fossils, radioactive at that.”
Lewis Thomas
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“Altruism, a jargon word for what used to be called love, is worse than weakness, it is sin, a violation of nature. Be seperate. Do not be a social animal.”
Lewis Thomas
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“Nature abhors a long silence.”
Lewis Thomas
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“My mitochondria comprise a very large proportion of me. I cannot do the calculation, but I suppose there is almost as much of them in sheer dry bulk as there is the rest of me. Looked at in this way, I could be taken for a very large, motile colony of respiring bacteria, operating a complex system of nuclei, microtubules, and neurons for the pleasure and sustenance of their families, and running, at the moment, a typewriter.”
Lewis Thomas
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“The greatest of all the accomplishments of 20th century science has been the discovery of human ignorance”
Lewis Thomas
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“The great thing about human language is that it prevents us from sticking to the matter at hand.”
Lewis Thomas
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“The capacity to blunder slightly is the real marvel of DNA. Without this special attribute, we would still be anaerobic bacteria and there would be no music.”
Lewis Thomas
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“Statistically, the probability of any one of us being here is so small that you'd think the mere fact of existing would keep us all in a contented dazzlement of surprise. ”
Lewis Thomas
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