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I shall borrow two words used for a slightly different…

“I shall borrow two words used for a slightly different purpose by the great demographer Alfred Lotka to distinguish between the two systems of heredity enjoyed by man: endosomatic or internal heredity for the ordinary or genetical heredity we have in common with animals; and exosomatic or external…” quote by Peter Medawar
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“I shall borrow two words used for a slightly different purpose by the great demographer Alfred Lotka to distinguish between the two systems of heredity enjoyed by man: endosomatic or internal heredity for the ordinary or genetical heredity we have in common with animals; and exosomatic or external heredity for the non-genetic heredity that is peculiarly our own - the heredity that is mediated through tradition, by which I mean the transfer of information through non-genetic channels from one generation to the next.”

Peter Medawar

About This Quote

This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.

Human cultural inheritance (exosomatic) differs from biological inheritance, shaping societies through learned knowledge.

In simple terms: Culture passes knowledge across generations, unlike genes.

Key Takeaway

Cultivate and share knowledge across generations.

Themes

culture inheritance learning society

Mood

thoughtful inquisitive

Type

educational philosophical

When to use this quote

  • education
  • family traditions
  • media
  • technology adoption

Key Concepts

memetics cultural evolution information transfer

Questions to Reflect On

  • How does cultural inheritance shape your identity?
  • What role does biology play in cultural change?
A Different Perspective

Biological factors also influence behavior, limiting cultural control.

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