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Animal Quote by Jean-Baptiste Lamarck

“In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ…” quote by Jean-Baptiste Lamarck
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“In every animal which has not passed the limit of its development, a more frequent and continuous use of any organ gradually strengthens, develops and enlarges that organ, and gives it a power proportional to the length of time it has been so used; while the permanent disuse of any organ imperceptibly weakens and deteriorates it, and progressively diminishes its functional capacity, until it finally disappears.”

Jean-Baptiste Lamarck

About This Quote

Source Book: Philosophie Zoologique, 1809

Regular use of a body part makes it stronger and larger, while neglect causes it to waste away over time.

In simple terms: Use strengthens; neglect weakens.

Key Takeaway

Practice to build ability; avoid neglect.

Themes

growth maintenance use and disuse biology evolution

Mood

motivational reflective

Type

educational inspirational

When to use this quote

  • learning a new language
  • training athletes
  • rehabilitation after injury
  • maintaining mental health

Key Concepts

muscle adaptation neuroplasticity skill acquisition

Questions to Reflect On

  • What habits have you neglected that could be revived?
  • How does consistent practice shape your abilities?
A Different Perspective

Neglect may not fully reverse gains; some loss can be permanent.

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