Let us suppose that an ichthyologist is exploring the life…
“Let us suppose that an ichthyologist is exploring the life of the ocean. He casts a net into the water and brings up a fishy assortment. Surveying his catch, he proceeds in the usual manner of a scientist to systematise what it reveals. He arrives at two generalisations: No sea-creature is less than two inches long. (2) All sea-creatures have gills. These are both true of his catch, and he assumes tentatively that they will remain true however often he repeats it.”
About This Quote
This interpretation was drafted with AI assistance. It is one reading of the quote, not the author's own explanation.
A scientist generalizes from limited data, risking over‑generalization and false certainty.
In simple terms: Drawing broad conclusions from small samples can be misleading.
Key Takeaway
Beware of over‑generalizing from limited evidence.
Themes
science
logic
bias
methodology
Mood
cautious
analytical
Type
epistemic
critical
When to use this quote
- research design
- data analysis
- policy making
- education
- risk assessment
Key Concepts
induction
sample size
generalization
Questions to Reflect On
- How can you test whether a pattern holds beyond your current data?
- What safeguards prevent over‑generalization?
A Different Perspective
Limited samples may not represent the whole population.