---
title: "Meaning & Key Takeaway of: In the past even scientists have been led…"
description: "\"In the past even scientists have been led to believe that only human beings have thoughts or emotions. Of course, nothing could be further from the tru..."
image: "https://sms4smile.com/quotes/i/925/elizabeth-marshall-thomas-3895_believe_in-the-past-even-scientists-have-been-le_2844302.png"
---

#  In the past even scientists have been led to believe that…

![“In the past even scientists have been led to believe that only human beings have thoughts or emotions. Of course, nothing could be further from the truth... After all, thoughts and emotions have evolutionary value.” quote by Elizabeth Marshall Thomas](https://sms4smile.com/quotes/i/925/elizabeth-marshall-thomas-3895_believe_in-the-past-even-scientists-have-been-le_2844302.png)   [Download](https://sms4smile.com/quotes/i/925/elizabeth-marshall-thomas-3895_believe_in-the-past-even-scientists-have-been-le_2844302.png) [Open image](https://sms4smile.com/quotes/i/925/elizabeth-marshall-thomas-3895_believe_in-the-past-even-scientists-have-been-le_2844302.png)

> “In the past even scientists have been led to believe that only human beings have thoughts or emotions. Of course, nothing could be further from the truth... After all, thoughts and emotions have evolutionary value.”

[Elizabeth Marshall Thomas](https://sms4smile.com/quotes/author/elizabeth-marshall-thomas/)

## About This Quote

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

Historically, humans thought only they had thoughts and emotions, but these are evolutionary traits shared across species.

**In simple terms:** Thoughts and emotions are evolutionary, not uniquely human.

Key Takeaway

Respect animal cognition.

Themes

evolution empathy animal cognition biology philosophy

Mood

thoughtful ethical scientific

Type

observation statement

When to use this quote

- wildlife research
- conservation
- ethical debates
- education

Key Concepts

comparative psychology ethical considerations shared traits

Questions to Reflect On

- How does recognizing animal emotions affect behavior?
- What evolutionary purposes do emotions serve?

A Different Perspective

Human‑centric bias limits understanding.

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[Emotion](https://sms4smile.com/quotes/about/emotion/) [Emotions](https://sms4smile.com/quotes/about/emotions/) [Human beings](https://sms4smile.com/quotes/about/human-beings/) [Humans](https://sms4smile.com/quotes/about/humans/) [Past](https://sms4smile.com/quotes/about/past/) [Philosophy of Mind](https://sms4smile.com/quotes/about/philosophy-of-mind/) [Science](https://sms4smile.com/quotes/about/science/) [Scientist](https://sms4smile.com/quotes/about/scientist/) [Thoughts and emotions](https://sms4smile.com/quotes/about/thoughts-and-emotions/) [Time](https://sms4smile.com/quotes/about/time/) [Truth](https://sms4smile.com/quotes/about/truth/) [Values](https://sms4smile.com/quotes/about/values/)

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