Doubt Quote by Thomas Gilovich
““How do we distinguish between the legitimate skepticism of those who scoffed at cold fusion, and the stifling dogma of the seventeenthcentury clergymen who, doubting Galileo's claim that the earth was not the center of the solar system, put him under house arrest for the last eight years of his life? In part, the answer lies in the distinction between skepticism and closed-mindedness. Many scientists who were skeptical about cold fusion nevertheless tried to replicate the reported phenomenon in their own labs; Galileo's critics refused to look at the pertinent data.””
About This Quote
Source Speech: Interview on Science and Skepticism, 2020
Distinguishes healthy scientific skepticism, which seeks evidence, from dogmatic closed‑mindedness that rejects data outright.
In simple terms: Good skepticism asks for proof; dogma blocks it.
Test ideas, stay open to data.
Themes
Mood
Type
When to use this quote
- lab replication attempts
- peer review
- public policy debates
- education curricula
Key Concepts
Questions to Reflect On
- How do you tell if doubt is productive?
- When does caution become obstruction?
Skepticism can become dismissive if not coupled with constructive inquiry.