Brain Quote by John B. S. Haldane
“If materialism is true, it seems to me that we cannot know that it is true. If my opinions are the result of the chemical processes going on in my brain, they are determined by the laws of chemistry, not those of logic.”
About This Quote
Source Letter: Scientific Philosophy, 1935
If materialism is true, knowledge is chemically determined, not logically derived, challenging certainty.
In simple terms: Science may be chemically bound.
Question foundations of knowledge.
Themes
Mood
Type
When to use this quote
- science education
- philosophical debate
- ethics
Key Concepts
Questions to Reflect On
- Can we trust intuition?
- What role does logic play?
Logical reasoning still matters.