Ads Quote by Thomas George Bonney
![“[Microscopic] evidence cannot be presented ad populum. What is seen with the microscope depends not only upon the instrument and the rock-section, but also upon the brain behind the eye of the observer. Each of us looks at a section with the accumulated experience of his past study. Hence the…” quote by Thomas George Bonney](https://sms4smile.com/quotes/img-quotes/f35/thomas-george-bonney-58324_ads_microscopic-evidence-cannot-be-presented_1648037.jpg)
“[Microscopic] evidence cannot be presented ad populum. What is seen with the microscope depends not only upon the instrument and the rock-section, but also upon the brain behind the eye of the observer. Each of us looks at a section with the accumulated experience of his past study. Hence the veteran cannot make the novice see with his eyes; so that what carries conviction to the one may make no appeal to the other. This fact does not always seem to be sufficiently recognized by geologists at large.”
About This Quote
Source Lecture: Geological Society of London, 1905
Interpretations of microscopic data are shaped by the observer’s expertise and expectations, not just the instrument.
In simple terms: Seeing depends on experience.
Key Takeaway
Recognize bias in observation.
Themes
science
perception
expertise
Mood
reflective
analytical
Type
educational
philosophical
When to use this quote
- field training
- peer review
- educational workshops
- laboratory analysis
Key Concepts
epistemology
observer bias
scientific methodology
Questions to Reflect On
- How does expertise influence what you observe?
- Can tools reduce observer bias?
A Different Perspective
Novice may misinterpret data without guidance.
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