Book Reviews
Think Again Summary & Review: Master the Art of Rethinking
Adam Grant reveals why the best thinkers know what they don’t know — and how to use the rethinking cycle, motivational interviewing,…
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Adam Grant
"If knowledge is power, knowing what we don't know is wisdom."
Adam Grant is an organizational psychologist and Wharton's top-rated professor, where he studies motivation, generosity, and original thinking. He has written five bestselling books, including Give and Take, Originals, and Think Again, and hosts the chart-topping podcast WorkLife. His TED talks are among the most-watched in the platform's history.
Author of 5 books·Wharton's top-rated professor·Key themes: rethinking, psychology, workplace culture
Books by Adam Grant
Our in-depth summaries and reviews of his work
Key Ideas & Recurring Themes
Think Like a Scientist
Treat your opinions as hypotheses to test, not treasures to defend. The best thinkers actively search for reasons they might be wrong instead of reasons they must be right.
Task Conflict, Not Relationship Conflict
Productive disagreement argues about ideas, not people. Teams that debate like scientists — challenging the argument, not the person — make better decisions than teams that avoid conflict altogether.
Confident Humility
Real confidence comes from trusting your capacity to grow, not from certainty that your current beliefs are correct. It lets you hold strong opinions, loosely.
The Rethinking Cycle
We drift between confident and humble, doubtful and curious. Lifelong learners deliberately reintroduce doubt into their thinking even after they've found an answer that works.
Notable Quotes
"We learn more from people who challenge our thought process than those who affirm our conclusions. Strong leaders engage their critics and make themselves stronger. Weak leaders silence their critics and make themselves weaker."— Think Again
"We listen to views that make us feel good, instead of ideas that make us think hard."— Think Again
"A mark of lifelong learners is recognizing that they can learn something from everyone they meet."— Think Again
"Thinking like a scientist involves more than just reacting with an open mind. It means being actively open-minded. It requires searching for reasons why we might be wrong — not for reasons why we must be right — and revising our views based on what we learn."— Think Again
"How do you know? It's a question we need to ask more often, both of ourselves and of others."— Think Again
Related Authors
Book Author Adam Grant
Think Again Summary & Review: Master the Art of Rethinking
Adam Grant reveals why the best thinkers know what they don’t know — and how to use the rethinking cycle, motivational interviewing, and challenge networks to make smarter decisions.