44 pages 1 hour read

Michael Lewis

The Undoing Project: A Friendship That Changed Our Minds

Nonfiction | Biography | Adult | Published in 2016

A modern alternative to SparkNotes and CliffsNotes, SuperSummary offers high-quality Study Guides that feature detailed chapter summaries and analysis of major themes, characters, quotes, and essay topics.

Important Quotes

Quotation Mark Icon

“At the bottom of the transformation in decision making in professional sports—but not only in professional sports—were ideas about the human mind, and how it functioned when it faced uncertain situations. These ideas had taken some time to seep into the culture, but now they were in the air we breathed.”


(Chapter 1, Page 51)

Lewis highlights the impact of Danny and Amos’s groundbreaking work by providing a culturally relevant example of how the implications of their research have touched an array of different fields. In this passage from the first chapter, Lewis argues that Danny and Amos’s work has essentially become part of the American psyche.

Quotation Mark Icon

“Freud was in the air but Danny didn’t want anyone lying on his couch, and he really didn’t want to lie upon anyone else’s.”


(Chapter 2, Page 68)

Lewis emphasizes Danny’s aversion to working as a clinical psychologist. Danny’s fascination with psychology derived from this desire to better understand human nature as a whole, as opposed to closely analyzing a single individual.

Quotation Mark Icon

“If you can’t observe what is happening in the mind, how can you even pretend to make a study of it?”


(Chapter 2, Page 68)

This quote refers to the dilemma that faced many psychologists in the 1950s. Despite a desire to hold psychology to high standards of scientific study, the human mind was still so elusive and incomprehensible that many gave up on the idea of studying the human mind altogether.

Related Titles

By Michael Lewis

Study Guide

logo

Flash Boys

Michael Lewis

Flash Boys: A Wall Street Revolt

Michael Lewis

Study Guide

logo

Going Infinite

Michael Lewis

Going Infinite: The Rise and Fall of a New Tycoon

Michael Lewis

Study Guide

logo

Liar’s Poker

Michael Lewis

Liar’s Poker

Michael Lewis

Study Guide

logo

Moneyball

Michael Lewis

Moneyball: The Art of Winning an Unfair Game

Michael Lewis

Study Guide

logo

The Big Short

Michael Lewis

The Big Short: Inside the Doomsday Machine

Michael Lewis

Study Guide

logo

The Fifth Risk

Michael Lewis

The Fifth Risk

Michael Lewis

Plot Summary

logo

The New New Thing

Michael Lewis

The New New Thing

Michael Lewis

Study Guide

logo

The Premonition

Michael Lewis

The Premonition: A Pandemic Story

Michael Lewis