Regarded by many as the father of modern linguistics, Noam Chomsky has authored over 100 books on varied topics, such as politics, linguistics, and war. A multi-talented personality, Noam Chomsky is considered a popular figure in analytic philosophy. Apart from influencing a wide array of academic fields, he has also contributed to the development of cognitivism.
One of the few personalities known for his disdain of self-promotion, Thomas Sowell is an important American social theorist and economist. Over the years, he has played a prominent role working as a faculty member of many prestigious universities, such as the University of California, Los Angeles (UCLA) and Cornell University.
Ralph Waldo Emerson was an American philosopher who led the transcendentalist movement that developed in the eastern United States in the 1820s and 1830s. He is credited with popularizing individualism through his numerous lectures and essays. Emerson influenced many thinkers and writers that followed him; he mentored Henry David Thoreau, who went on to become a leading transcendentalist.
Milton Friedman was an American economist. Widely regarded as one of the most influential economists of the 20th century, Friedman was honored with the Nobel Memorial Prize in Economic Sciences in 1976. One of the most influential personalities of the Chicago school of economics, Friedman mentored people like Gary Becker and Thomas Sowell who went on to become leading economists.
B. F. Skinner was an American behaviorist, psychologist, inventor, author, and social philosopher. Skinner, who taught psychology at Harvard University, is credited with founding a school of thought in psychology called the experimental analysis of behavior. Regarded as a pioneer of modern behaviorism, Skinner was named the 20th century's most influential psychologist, according to a survey conducted in June 2002.
Abraham Maslow was an American psychologist best remembered for creating an idea in psychology called Maslow's hierarchy of needs. Maslow, who advocated self-actualization, is also credited with co-founding the school of transpersonal psychology. In 1967, he was adjudged Humanist of the Year by the popular non-profit organization, American Humanist Association.
William James was an American psychologist and philosopher. Widely regarded as the father of American psychology and one of the most influential American philosophers, James was the first educator in the United States to offer a course in psychology. He is also credited with co-founding a psychological school of thought called functional psychology and establishing a philosophical school called pragmatism.
A staunch advocate of progressive education and liberalism, the American philosopher and psychologist was the founder of the University of Chicago Laboratory Schools. John Dewey’s famous writings included The Reflex Arc Concept in Psychology and Human Nature and Conduct. According to him, passion for knowledge and intellectual curiosity were central to a teacher. He called himself a democratic socialist.
Erik Erikson was a German-American psychoanalyst and developmental psychologist best remembered for developing a theory on the psychological development of humans. He is credited with coining the term identity crisis, the failure to achieve ego identity. Also a prolific writer, Erikson won a US National Book Award and a Pulitzer Prize for his book Gandhi's Truth.
Zora Neale Hurston was an author, anthropologist, and filmmaker. As an African American woman, she often depicted racial issues in the films she made. Her works also reflected her struggles as a black woman. In her early career, she conducted anthropological and ethnographic research and focused more on writing and film-making in her later years.
Psychologist Carl Rogers was the first to introduce a client-centric approach to psychotherapy and addressed the patient as the client. Besides working on troubled children, he also taught at various institutes, such as the University of Chicago. On Becoming a Person remains one of his best-known books.
Daniel Kahneman is an Israeli economist and psychologist. He was honored with the 2002 Nobel Memorial Prize in Economic Sciences for his work on behavioral economics. In 2011, Kahneman was named among the top global thinkers by Foreign Policy magazine. In 2015, Daniel Kahneman was ranked seventh in the most influential economist in the world list published by The Economist.
One of the most celebrated anthropologists to have ever existed, Margaret Mead is remembered for his research on a broad range of topics, such as sexual conventions in Western society. Of her 23 books, the most talked-about was the bestseller Coming of Age in Samoa.
Albert Bandura is a Canadian-American psychologist who has made significant contributions to several fields of psychology, such as personality psychology, therapy, and social cognitive theory. Regarded as the greatest living psychologist, Bandura is also counted among the most influential psychologists ever. He has been honored with over 16 honorary degrees. In 2016, Albert Bandura received the National Medal of Science.
John B. Watson was the first to introduce the theory of behaviorism to psychology. He believed human behavior, like animal behavior, should be studied under objective and experimental conditions. One of his experiments included conditioning the fear of white rats into an 11-year-old boy he named Little Albert.
Henry David Thoreau was an American philosopher, essayist, poet, and naturalist. He is credited with popularizing transcendentalism and simple living. His philosophy of civil disobedience, which was detailed in his essay of the same name, later influenced world-renowned personalities like Leo Tolstoy, Martin Luther King Jr., and Mahatma Gandhi.
The Schock Prize and National Humanities Medal-winning American moral and political philosopher John Bordley Rawls is often counted among the most influential political philosophers of the twentieth-century. Notable books of Rawls, where he elucidated his theory of justice and which has influenced a variety of thinkers, includes A Theory of Justice and Political Liberalism.

Social psychologist Stanley Milgram was inspired by the suffering of the Jews during the Holocaust to understand what drove people to harm others, and thus created his Milgram experiment. He also taught at prestigious institutes such as Harvard and Yale. His studies also included the six degrees of separation concept.
Psychologist and former Harvard professor Timothy Leary was an advocate of psychedelic drugs. His research experiments included the controversial Concord Prison Experiment and Marsh Chapel Experiment. After being fired from Harvard for his actions, he continued promoting his theories through catchphrases such as “turn on, tune in, drop out.”
Gore Vidal was an American intellectual and writer. He served as a major inspiration to gays, lesbians, and bisexuals as he was openly bisexual and often incorporated LGBT characters in his novels, which was very unusual at the time. He was also known for his debates with William F. Buckley Jr., which inspired the 2015 documentary film Best of Enemies.
Ayn Rand was a Russian-American philosopher and writer. Apart from publishing two best-selling novels, Ayn Rand is credited with developing a philosophical system called Objectivism. Over the years, Ayn Rand has been a major influence among American conservatives and libertarians. Some of the famous personalities influenced by her include Amber Heard, Vince Vaughn, Jimmy Wales, Ayelet Shaked, and Mary Ruwart.
Hailed as one of the greatest logicians since Aristotle, Kurt Gödel was Austrian-born American mathematician, logician, and philosopher, who earned international stardom for his incompleteness theorem. Also credited with developing a technique called Gödel numbering, he later started working on Mathematical Platonism, a philosophical theory that failed to attract wide acceptance.
Steven Pinker is a Canadian-American linguist, cognitive psychologist, and popular science author. He is also a supporter of the computational theory of mind and evolutionary psychology. His works have earned him awards from organizations like the National Academy of Sciences, the American Psychological Association, and the American Humanist Association. In 2013, he was named in Prospect magazine's World Thinkers list.

Apart from being the MD of Thiel Capital, mathematician and economist Eric Weinstein is also a researcher at Oxford. The Harvard alumnus had quit academia for 20 years before he returned again. He coined the term “intellectual dark web” and works on topics such as gauge theory, risk management, and immigration.
American philosopher of science Thomas Kuhn is noted for his book on history of science, The Structure of Scientific Revolutions, publication of which marked a significant event in the history, philosophy, and sociology of science. He presented his notion of paradigm shift and identified and elaborated on normal science in this book which remained influential in academic and popular circles.

American–Australian naturalist Terri Irwin is best known as the co-host of The Crocodile Hunter, along with her husband, the late animal expert Steve Irwin. She has also been part of shows such as Croc Files and Crikey! It's the Irwins, and helped in the development of Australia Zoo.
Remembered for his research on cultural relativism, German-born American anthropologist Franz Boas is often referred to as the Father of American Anthropology. The son of a merchant, he was a sickly child who grew up reading a lot. He also studied folklore and developed it as an academic discipline.
Born to economics professor parents, Abhijit Banerjee grew up in India before he moved to the U.S. to study at Harvard. He later taught at Harvard and Princeton and is now associated with MIT. His studies on the ways of reducing world poverty won him a Nobel Prize.
A lawyer, law professor, political analyst and a civil rights activist, Maya Harris’s list of achievements is huge. One of the youngest in the US to become a law school dean, Maya Harris has worked with Hillary Clinton and her own sister Kamala Harris in their respective presidential campaigns.

Psychologist and Stanford professor Philip Zimbardo is best known for his Stanford prison experiment, which proved how prisoners get abusive due to situational factors. He is also known for his books The Lucifer Effect and The Time Paradox and has received a Lifetime Achievement Award from the American Psychological Foundation.
Lola Van Wagenen is an American historian who is credited with co-founding non-profit educational organizations like Consumer Action Now (CAN) and Clio Visualizing History, Inc. Consumer Action Now went on to establish several environmental education and consumer-oriented programs in an attempt to raise awareness about the effects of consumers' buying habits on the environment.

The last Crow war chief, Dr. Joseph Medicine Crow was part of the Whistling Water clan of Native Americans. The legendary indigenous hero was awarded the Presidential Medal of Freedom. A published historian, too, he is remembered for his research on the Battle of the Little Bighorn.
Nobel laureate Joseph E. Stiglitz is best known for his work on the theory of markets with asymmetric information. The MIT alumnus has taught at prestigious institutes such as Harvard and Stanford and currently teaches at Columbia University, He has been an economic advisor to the U.S. government, too.
American Trappist monk and theologian Thomas Merton was ordained a priest and named Father Louis. He was a member of the monastery Abbey of Our Lady of Gethsemani. He is remembered for his bestselling autobiography, The Seven Storey Mountain, and for his study of Eastern religions such as Buddhism.