---
title: "Meaning & Key Takeaway of: This was not an academic matter. Biology…"
description: "\"“This was not an academic matter. Biology, as George Wald had said, was a unique science because it could not define its subject matter. Nobody had a d..."
image: "https://sms4smile.com/quotes/i/a7a/anonymous-1_biology_this-was-not-an-academic-matter-biology_154586.jpg"
---

#  This was not an academic matter. Biology, as George Wald…

![“This was not an academic matter. Biology, as George Wald had said, was a unique science because it could not define its subject matter. Nobody had a definition for life. Nobody knew what it was, really. The old definitions-- an organism that showed ingestion, excretion, metabolism, reproduction…” quote by Anonymous](https://sms4smile.com/quotes/i/a7a/anonymous-1_biology_this-was-not-an-academic-matter-biology_154586.jpg)   [Download](https://sms4smile.com/quotes/i/a7a/anonymous-1_biology_this-was-not-an-academic-matter-biology_154586.jpg) [Open image](https://sms4smile.com/quotes/i/a7a/anonymous-1_biology_this-was-not-an-academic-matter-biology_154586.jpg)

> ““This was not an academic matter. Biology, as George Wald had said, was a unique science because it could not define its subject matter. Nobody had a definition for life. Nobody knew what it was, really. The old definitions-- an organism that showed ingestion, excretion, metabolism, reproduction, and so on-- were worthless. One could always find exceptions.   The group had finally concluded that energy conversion was the hallmark of life. All living organisms in some way took in energy-- as food, or sunlight-- and converted it to another form of energy, and put it to use. (Viruses were the exception to this rule, but the group was prepared to define viruses as nonliving.)   For the next meeting, Leavitt was asked to prepare a rebuttal to the definition. He pondered it for a week, and returned with three objects: a swatch of black cloth, a watch, and a piece of granite. He set them down before the group and said, "Gentleman, I give you three living things."   He then challenged the team to prove that they were not living. He placed the black cloth in the sunlight; it became warm. This, he announced, was an example of energy conversion-radiant energy to heat.   It was objected that this was merely passive energy absorption, not conversion. It was also objected that the conversion, if it could be called that, was not purposeful. It served no function.   "How do you know it is not purposeful?" Leavitt had demanded.   They then turned to the watch. Leavitt pointed to the radium dial, which glowed in the dark. Decay was taking place, and light was being produced.   The men argued that this was merely release of potential energy held in unstable electron levels. But there was growing confusion; Leavitt was making his point.   Finally, they came to the granite. "This is alive," Leavitt said. "It is living, breathing, walking, and talking. Only we cannot see it, because it is happening too slowly. Rock has a lifespan of three billion years. We have a lifespan of sixty or seventy years. We cannot see what is happening to this rock for the same reason that we cannot make out the tune on a record being played at the rate of one revolution every century. And the rock, for its part, is not even aware of our existence because we are alive for only a brief instant of its lifespan. To it, we are like flashes in the dark."   He held up his watch.   His point was clear enough, and they revised their thinking in one important respect. They conceded that it was possible that they might not be able to analyze certain life forms. It was possible that they might not be able to make the slightest headway, the least beginning, in such an analysis. ==========””

[Anonymous](https://sms4smile.com/quotes/author/anonymous/)

## About This Quote

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

The anecdote challenges traditional definitions of life by showing that energy conversion, even in inanimate objects, can be seen as a hallmark of living processes.

**In simple terms:** Energy conversion can blur lines between living and nonliving.

Key Takeaway

Question rigid definitions of life.

Themes

science philosophy definition energy life

Mood

curious thoughtful skeptical

Type

philosophical scientific

When to use this quote

- education
- research
- public discourse
- science communication

Key Concepts

biology philosophical inquiry conceptual analysis

Questions to Reflect On

- What criteria truly define life?
- How does this affect our view of viruses?

A Different Perspective

Definitions may be too narrow for complex phenomena.

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