Maybe altruism is our most primitive attribute out of reach, beyond our control. Or perhaps it is immediately at hand, waiting to be released, disguised now, in our kind of civilization as affection or friendship or attachment. I can’t see why it should be unreasonable for all human beings to have strands of DNA coiled up in chromosomes, coding out instincts for usefulness and helpfulness. Usefulness may turn out to be the hardest test of fitness for survival, more important than aggression, more effective, in the long run, than grabbiness." - Meaning and context.">
"The Tucson Zoo", p. 10
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Maybe altruism is our most primitive attribute out of reach, beyond our control. Or perhaps it is immediately at hand, waiting to be released, disguised now, in our kind of civilization as affection or friendship or attachment. I can’t see why it should be unreasonable for all human beings to have strands of DNA coiled up in chromosomes, coding out instincts for usefulness and helpfulness. Usefulness may turn out to be the hardest test of fitness for survival, more important than aggression, more effective, in the long run, than grabbiness.

— Lewis Thomas

What It Means

This is a placeholder explanation generated by the low-overhead model. It interprets "Maybe altruism is our most primitive attribute out of reach, beyond our control. Or perhaps it is immediately at hand, waiting to be released, disguised now, in our kind of civilization as affection or friendship or attachment. I can’t see why it should be unreasonable for all human beings to have strands of DNA coiled up in chromosomes, coding out instincts for usefulness and helpfulness. Usefulness may turn out to be the hardest test of fitness for survival, more important than aggression, more effective, in the long run, than grabbiness." in the context of ""The Tucson Zoo", p. 10" to mean that wisdom is timeless.

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Source: Wikiquote: "Lewis Thomas" (Quotes, The Medusa and the Snail: More Notes of a Biology Watcher (1979)) The 'What it means' explanation text was generated by Google Gemini Flash (accessed January 18, 2026). https://gemini.google.com/app
Lewis Thomas

About Lewis Thomas

Lewis Thomas (25 November 1913 - 3 December 1993) was a physician, author, administrator, educator, policy advisor and researcher. He served as a Dean of Yale Medical School, Dean of the New York University School of Medicine and President of Memorial Sloan-Kettering Institute.