Intelligence Quote by Daniel Kahneman
““Stanovich argues that high intelligence does not make people immune to biases. Another ability is involved, which he labels rationality. Stanovich’s concept of a rational person is similar to what I earlier labeled “engaged.” The core of his argument is that rationality should be distinguished from intelligence. In his view, superficial or “lazy” thinking is a flaw in the reflective mind, a failure of rationality.””
About This Quote
Source Book: Thinking, Fast and Slow, 2011
Intelligence alone doesn’t protect against cognitive errors; rational thinking requires deliberate, reflective effort beyond raw mental ability.
In simple terms: Smart people can still be biased without careful thinking.
Key Takeaway
Practice reflective thinking to catch biases.
Themes
cognition
bias
intelligence
rationality
reflection
Mood
analytical
thoughtful
Type
philosophical
educational
When to use this quote
- decision making
- problem solving
- education
- policy design
- personal growth
Key Concepts
dual‑process theory
metacognition
engaged thinking
Questions to Reflect On
- What habits can cultivate rational thinking?
- How does “lazy” thinking affect everyday choices?
A Different Perspective
Rationality demands effort; it’s not an automatic byproduct of intelligence.
