No Two Alike: Human Nature and Human Individuality

In 'No Two Alike,' Judith Rich Harris challenges the conventional views on nature versus nurture, arguing that our unique individuality is shaped more by peer influence than parental guidance. Through compelling research and thought-provoking insights, she illustrates how human behavior is a complex interplay of genetics and social dynamics. Harris invites readers to reconsider the roles of family and environment in shaping our identities. This revolutionary perspective not only redefines human development but also sparks a debate about the essence of individuality. Prepare to rethink what you thought you knew about who we are and why we are the way we are.

By Judith Rich Harris

Published: 2007

""In the tapestry of human existence, individuality is the vibrant thread that colors our common humanity, revealing that while we are shaped by our environment, our uniqueness is what truly defines us.""

No Two Alike: Human Nature and Human IndividualityBook binding

Start Listening

0:000:00

What Readers Say About This Book

The author of the controversial book The Nurture Assumption tackles the biggest mystery in all of psychology: What makes people differ so much in personality and behavior? It can't just be "nature and nurture," because even identical twins who grow up together--same genes, same parents--have different personalities. And if psychologists can't explain why identical twins are different, they also can't explain why each of us differs from everyone else. Why no two people are alike. Harris turns out to be well suited for the role of detective--it isn't easy to pull the wool over her eyes. She rounds up the usual suspects and shows why none of the currently popular explanations for human differences--birth order effects, for example, or interactions between genes and environment--can be the perpetrator she is looking for. None of these theories can solve the mystery of human individuality. The search for clues carries Harris into some fascinating byways of science. The evidence she examines ranges from classic experiments in social psychology to cutting-edge research in neuroscience. She looks at studies of twins, research on autistic children, observations of chimpanzees, birds, and even ants. Her solution is a startlingly original one: the first completely new theory of personality since Freud's. Based on a principle of evolutionary psychology--the idea that the human mind is a toolbox of special-purpose devices--Harris's theory explains how attributes we all have in common can make us different. This is the story of a scientific quest, but it is also the personal story of a courageous and innovative woman who refused to be satisfied with "what everyone knows is true."

Mike & Casey Show Logo

The Mike & Casey Show

Dive into captivating book discussions with our expert hosts

Key Points from No Two Alike: Human Nature and Human Individuality

About the Author

J

Judith Rich Harris

Judith Rich Harris is an American author and psychologist known for her pioneering work in developmental psychology and her influential writings on personality development. She gained prominence with her groundbreaking book, "The Nurture Assumption: Why Children Turn Out the Way They Do," which challenges the conventional wisdom about the impact of parenting on child development. Her writing style is characterized by a compelling blend of scientific research and accessible prose, making complex ideas understandable to a broad audience. In addition to her notable works, which also include "No Two Alike: Human Nature and Human Individuality," Harris has contributed significantly to discussions on nature versus nurture, emphasizing the role of peer groups and social context in shaping personality.

Book Details

Key information about the book.

Authors
Judith Rich Harris
Published
June 2007
Publisher
W. W. Norton & Company
ISBN
0393329712
Language
English
Pages
344
Genres
Cognitive PsychologyBehavioral PsychologyPsychology

Purchase Options

Amazon logoBuy on Amazon
BookShop logoBuy via BookShop

Support local bookstores: BookShop gives a portion of each sale to independent bookshops!

Similar books you might like →

Thinking, Fast and SlowBook binding

Thinking, Fast and Slow

Daniel Kahneman

Predictably Irrational, Revised and Expanded EditionBook binding

Predictably Irrational, Revised and Expanded Edition

Dan Ariely

The Undoing ProjectBook binding

The Undoing Project

Michael Lewis

The Social AnimalBook binding

The Social Animal

Joshua Aronson, Elliot Aronson

Mistakes Were Made (but Not by Me)Book binding

Mistakes Were Made (but Not by Me)

Elliot Aronson, Carol Tavris

Confidence GameBook binding

Confidence Game

Christine S. Richard

Swimming AcrossBook binding

Swimming Across

Andrew S. Grove

How Full Is Your Bucket? Anniversary EditionBook binding

How Full Is Your Bucket? Anniversary Edition

Tom Rath, Don Clifton

IrresistibleBook binding

Irresistible

Adam Alter

Pre-SuasionBook binding

Pre-Suasion

Robert Cialdini

IndistractableBook binding

Indistractable

Nir Eyal

The Opposite of HateBook binding

The Opposite of Hate

Sally Kohn

Cognitive PsychologyBook binding

Cognitive Psychology

Michael W. Eysenck, Mark T. Keane

How We DecideBook binding

How We Decide

Jonah Lehrer

Handbook of Social Psychology, Volume 1Book binding

Handbook of Social Psychology, Volume 1

Susan T. Fiske, Daniel T. Gilbert, Gardner Lindzey

BuyologyBook binding

Buyology

Martin Lindstrom

A Path with HeartBook binding

A Path with Heart

Jack Kornfield

Psychology of the Digital AgeBook binding

Psychology of the Digital Age

John R. Suler

BehaveBook binding

Behave

Robert M. Sapolsky

Logic and DesignBook binding

Logic and Design

Krome Barratt

Thoughts on DesignBook binding

Thoughts on Design

Paul Rand

Fundamental Principles of the Metaphysic of MoralsBook binding

Fundamental Principles of the Metaphysic of Morals

Immanuel Kant

The Essential Writings of Ralph Waldo EmersonBook binding

The Essential Writings of Ralph Waldo Emerson

Ralph Waldo Emerson

MindBook binding

Mind

The Library BookBook binding

The Library Book

Susan Orlean

A Collection of EssaysBook binding

A Collection of Essays

George Orwell

The Origins and History of ConsciousnessBook binding

The Origins and History of Consciousness

Erich Neumann

Collected Works of C.G. Jung, Volume 7Book binding

Collected Works of C.G. Jung, Volume 7

C. G. Jung

A Short History of Financial EuphoriaBook binding

A Short History of Financial Euphoria

John Kenneth Galbraith

Cupid's Poisoned ArrowBook binding

Cupid's Poisoned Arrow

Marnia Robinson

Take your reading experience to the next level

Download our mobile app to enjoy your favorite books on the go. Get access to exclusive features, offline listening, and personalized recommendations.

Download on the App Store

Book Collections you might like →

Ron Conway's Book Recommendations

Ron Conway's Book Recommendations

Ron Conway is an American angel investor and philanthropist, often referred to as the “Godfather of Silicon Valley” for his early investments in companies like Google, Facebook, and Twitter. As the founder of SV Angel, Conway has backed hundreds of startups and played a key role in the growth of the tech industry. He is known for his extensive network and ability to connect entrepreneurs with the resources they need to succeed. In addition to his work in tech, Conway is involved in philanthropy, particularly in areas like education and public health. His contributions to both Silicon Valley and charitable causes have earned him widespread recognition.

View Collection
Naval Ravikant's Book Recommendations

Naval Ravikant's Book Recommendations

Naval Ravikant is an entrepreneur, angel investor, and philosopher, best known as the co-founder of AngelList, a platform that connects startups with investors. Ravikant is a prolific thinker and writer on topics such as startups, investing, and personal well-being, sharing his wisdom through essays, podcasts, and social media. He has invested in over 100 companies, including Uber, Twitter, and Yammer, making him one of Silicon Valley’s most successful angel investors. Ravikant is also known for his philosophical musings on wealth, happiness, and the meaning of life, which have garnered him a large and dedicated following.

View Collection
Amy Hood's Book Recommendations

Amy Hood's Book Recommendations

Amy Hood is the Chief Financial Officer (CFO) of Microsoft, responsible for leading the company’s worldwide financial operations, including accounting, strategic planning, and treasury. Hood joined Microsoft in 2002 and became CFO in 2013, making her one of the most powerful women in tech. She has been a driving force behind Microsoft’s shift to cloud computing, helping to grow its Azure and Office 365 businesses, which have been key to the company's recent financial success. Hood is known for her analytical rigor and strategic thinking, often credited with streamlining operations and boosting profitability during her tenure. She has also played a critical role in Microsoft’s acquisitions, including LinkedIn and GitHub, further expanding the company’s portfolio. Hood is a vocal advocate for diversity and inclusion in the workplace, championing efforts to create a more equitable environment within Microsoft. Her leadership has earned her recognition as one of the most influential executives in the tech industry.

View Collection
Joe Rogan's Book Recommendations

Joe Rogan's Book Recommendations

Joe Rogan is a multifaceted American entertainer known primarily for his work as a comedian, podcast host, and commentator. He gained widespread recognition through his immensely popular podcast, "The Joe Rogan Experience," which has featured in-depth conversations with a diverse array of guests, including scientists, celebrities, and politicians. Though not primarily known for literature, Rogan has contributed to the field with his thought-provoking discussions that often explore philosophical and intellectual ideas. Additionally, he has authored the book "Mastering the Rubber Guard," which delves into Brazilian Jiu-Jitsu techniques, showcasing his expertise in martial arts. Rogan's influence extends beyond traditional media, impacting contemporary discourse through his unique blend of humor, curiosity, and critical thinking.

View Collection
Charlie Munger's Book Recommendations

Charlie Munger's Book Recommendations

Charlie Munger is an American investor, businessman, and philanthropist, best known as the vice chairman of Berkshire Hathaway, where he partners with Warren Buffett. Renowned for his insights on investment strategies and mental models, Munger has significantly influenced the world of finance. His notable literary contributions include "Poor Charlie's Almanack," a compilation of his speeches and writings that distill his wisdom on decision-making and business principles. Munger's work emphasizes the importance of multidisciplinary thinking and continuous learning. Beyond his financial acumen, he is celebrated for his charitable efforts, particularly in education and healthcare.

View Collection
Anna Kendrick's Book Recommendations

Anna Kendrick's Book Recommendations

Anna Kendrick is an acclaimed actress and author, best known for her versatile performances in film and theater. She gained widespread recognition for her role in the "Twilight" series and earned an Academy Award nomination for her performance in "Up in the Air." In 2016, Kendrick expanded her creative repertoire by publishing her memoir, "Scrappy Little Nobody," which offers a candid, humorous look at her life and career. The book became a New York Times bestseller, showcasing her sharp wit and storytelling talent. Kendrick continues to influence both the entertainment and literary worlds with her engaging presence and authentic voice.

View Collection
Barack Obama's Book Recommendations

Barack Obama's Book Recommendations

Barack Obama is the 44th President of the United States, serving from 2009 to 2017. As the first African American president, Obama’s leadership marked a historic moment in American history. His administration focused on healthcare reform, economic recovery from the Great Recession, and environmental policies. He is best known for the Affordable Care Act, as well as his efforts to expand civil rights and restore diplomatic relations with Cuba. Since leaving office, Obama has continued to engage in public life through his foundation, focusing on leadership development, civic engagement, and global issues.

View Collection
Jon Stewart's Book Recommendations

Jon Stewart's Book Recommendations

Jon Stewart is an American comedian, writer, and former host of The Daily Show, where he gained fame for his satirical take on news and politics. Stewart transformed The Daily Show into a critical voice in American media, blending humor with hard-hitting commentary on political and social issues. After stepping down from the show, Stewart has continued to advocate for causes like 9/11 first responders and veterans' rights. He is also a filmmaker, directing the political satire film Irresistible. Stewart remains a significant figure in American culture, known for his wit, activism, and influence on political discourse.

View Collection
Andrew Wilkinson's Book Recommendations

Andrew Wilkinson's Book Recommendations

Andrew Wilkinson is a distinguished author and entrepreneur, best known for his insightful business writings and contributions to the tech industry. He co-founded MetaLab, a prominent design agency that has shaped the user experience of major platforms like Slack and Coinbase. Wilkinson's entrepreneurial journey and his publications provide valuable perspectives on startup culture, innovation, and leadership. His writing, often featured in leading business magazines and his personal blog, has garnered a wide readership for its practical advice and engaging storytelling. Andrew continues to influence both literature and the business world with his unique blend of creativity and strategic thinking.

View Collection
Anna Cheng's Book Recommendations

Anna Cheng's Book Recommendations

Anna Cheng is a celebrated contemporary novelist known for her evocative prose and richly drawn characters. Her debut novel, "Whispers of the Ancients," garnered critical acclaim, securing a spot on the New York Times Bestseller list and earning her the Man Booker Prize. Cheng's subsequent works consistently explore themes of heritage, identity, and the immigrant experience, resonating with a global audience. She is also a recipient of the PEN/Faulkner Award, recognizing her contributions to American fiction. Beyond her literary pursuits, Cheng actively mentors emerging writers and participates in numerous literary festivals worldwide.

View Collection
Terry Crews's Book Recommendations

Terry Crews's Book Recommendations

Terry Crews is a multifaceted American actor, artist, and former professional football player, highly recognized for his dynamic presence on screen and in literature. He authored the compelling memoir "Manhood: How to Be a Better Man—or Just Live with One," where he shares his journey of overcoming personal and professional challenges with candor and insight. Crews' work in literature has been praised for its vulnerability and motivational impact, encouraging readers to confront issues like masculinity and self-improvement. In addition to his literary contributions, Crews is celebrated for his roles in popular television series such as "Brooklyn Nine-Nine" and movies like "The Expendables." His advocacy for mental health, anti-domestic violence, and the Me Too movement further solidifies his role as a significant cultural influencer and inspirational figure.

View Collection
Daniel Burka's Book Recommendations

Daniel Burka's Book Recommendations

Daniel Burka is a prominent figure in the tech and design world, best known for his significant contributions to digital product design. As a design partner at GV (formerly Google Ventures), he has played a crucial role in shaping the user experience of numerous successful startups. Burka co-founded the design agency MetaLab, which has worked with top-tier clients like Slack and Coinbase. Additionally, his work at Digg as the Director of Design helped pioneer social media design trends in the early 2000s. While not primarily an author, Burka's influence extends into literature through his insightful writings and talks on design and innovation.

View Collection
Anthony Pompliano's Book Recommendations

Anthony Pompliano's Book Recommendations

Anthony Pompliano, also known as "Pomp," is a prominent entrepreneur and investor focused on the cryptocurrency and blockchain sectors. He co-founded Morgan Creek Digital, an investment firm dedicated to blockchain technology and digital assets. Pomp is also well-known for his popular newsletter, "The Pomp Letter," where he shares insights on finance, technology, and the future of money. As a prolific voice in the crypto community, he has appeared on multiple media platforms, including his own podcast, "The Pomp Podcast," where he interviews industry leaders and innovators. Through his writings and public engagements, Pompliano has significantly contributed to the broader understanding and adoption of digital currencies.

View Collection
Julie Zhuo's Book Recommendations

Julie Zhuo's Book Recommendations

Julie Zhuo is a product design expert and author, best known for her work as the Vice President of Product Design at Facebook, where she played a key role in shaping the platform's user experience. Zhuo is also the author of the best-selling book The Making of a Manager, which offers insights into leadership and team management, especially for first-time managers. She is passionate about helping people navigate the complexities of leadership and product development. Since leaving Facebook, Zhuo has continued to focus on writing, advising, and mentoring leaders in the tech industry. Her expertise in design and management has made her a respected voice in Silicon Valley.

View Collection
Alfred Lin's Book Recommendations

Alfred Lin's Book Recommendations

Alfred Lin is a venture capitalist and partner at Sequoia Capital, where he focuses on investments in consumer internet, enterprise, and mobile companies. Lin is known for his early investments in companies like Airbnb and DoorDash, helping them grow into major global brands. Before joining Sequoia, Lin was an executive at Zappos, where he worked closely with CEO Tony Hsieh to develop the company’s innovative culture and customer service model. Lin’s expertise in scaling businesses and his strategic vision have made him one of the most respected venture capitalists in Silicon Valley.

View Collection
Brian Armstrong's Book Recommendations

Brian Armstrong's Book Recommendations

Brian Armstrong is a renowned entrepreneur and author best known for co-founding and leading Coinbase, a major cryptocurrency exchange. His literary contributions include insightful writings on the future of digital currencies and blockchain technology. Armstrong's work has been pivotal in demystifying complex financial systems for a broader audience. Beyond his business acumen, his thought leadership in publications and public speaking engagements has cemented his status as a key voice in the fintech revolution. His dedication to innovation continues to influence the trajectory of global financial systems.

View Collection
John Fish's Book Recommendations

John Fish's Book Recommendations

John Fish is a dynamic author and YouTuber known for his insightful explorations of productivity, education, and personal development. Gaining prominence through his engaging video content, Fish has also made significant contributions to literature with his thought-provoking essays and articles. He has been particularly influential among students and young professionals, offering practical advice on effective learning techniques and time management. His work often emphasizes the importance of curiosity and lifelong learning, resonating with a broad audience. In addition to his literary pursuits, Fish is recognized for his commitment to fostering a supportive and motivating online community.

View Collection
Alex Hormozi's Book Recommendations

Alex Hormozi's Book Recommendations

Alex Hormozi is a celebrated entrepreneur, author, and founder of Acquisition.com, a company dedicated to helping businesses scale efficiently. He gained prominence with his best-selling book "Gym Launch Secrets," which provides a blueprint for fitness entrepreneurs to grow their businesses. Hormozi is also known for "The Million Dollar Offers" book, where he shares strategies on creating irresistible offers that drive sales. His work has significantly impacted the business community, providing practical insights and actionable advice for entrepreneurs. Through his books and business ventures, Hormozi continues to inspire and guide countless individuals on their journey to success.

View Collection
Iman Gadzhi's Book Recommendations

Iman Gadzhi's Book Recommendations

Iman Gadzhi is a renowned entrepreneur, digital marketing expert, and author, best known for his influential work in the field of online business education. He founded IAG Media, a digital marketing agency that has helped numerous companies scale their online presence. Gadzhi is also the creator of the popular online course, "GrowYourAgency," which has educated thousands of aspiring digital marketers worldwide. His contributions to literature include insightful writings on entrepreneurship and self-improvement, with a focus on empowering individuals to achieve financial independence. Gadzhi's impact on the digital marketing landscape and dedication to teaching have solidified his reputation as a thought leader in the industry.

View Collection
Raoul Pal's Book Recommendations

Raoul Pal's Book Recommendations

Raoul Pal is a British economist, investment strategist, and co-founder of Real Vision, a financial media company that provides in-depth analysis of global markets and economies. Pal is known for his insights on macroeconomics, cryptocurrency, and investment trends, often sharing his expertise through interviews, reports, and documentaries. Before founding Real Vision, Pal worked at Goldman Sachs and managed a global macro hedge fund. He is a strong advocate for decentralized finance (DeFi) and frequently discusses the future of digital currencies and blockchain technology. His forward-thinking perspectives on finance have earned him a large following among investors and financial professionals.

View Collection
Arianna Huffington's Book Recommendations

Arianna Huffington's Book Recommendations

Arianna Huffington is the founder of The Huffington Post and Thrive Global, a company focused on wellness and productivity. She is a bestselling author and prominent speaker on the importance of sleep and managing stress. Arianna’s work emphasizes the importance of balance between professional success and personal well-being. Her book The Sleep Revolution has inspired a global movement to prioritize rest. She is considered one of the most influential women in media and business.

View Collection
Adam Grant's Book Recommendations

Adam Grant's Book Recommendations

Adam Grant is a renowned organizational psychologist and bestselling author, celebrated for his influential work on motivation and workplace dynamics. He is a professor at the Wharton School of the University of Pennsylvania, where he has been the youngest tenured professor and earned numerous teaching awards. Grant's books, including "Give and Take," "Originals," and "Think Again," have been translated into multiple languages and have topped bestseller lists worldwide. His research and insights are frequently featured in major media outlets, and he hosts the popular podcast "WorkLife." Through his writing and speaking, Grant has profoundly impacted the fields of psychology, business, and education.

View Collection

"In the tapestry of human existence, individuality is the vibrant thread that colors our common humanity, revealing that while we are shaped by our environment, our uniqueness is what truly defines us."

No Two Alike: Human Nature and Human Individuality

By Judith Rich Harris

Frequently Asked Questions