One of Sartre and de Beauvoir's lovers accused them of exploitation

The philosophical duo's open relationship sometimes included shared partners, including de Beauvoir's students. One of those students, Bianca Lamblin, wrote a book, "A Disgraceful Affair," about the experience and characterized it as sexual exploitation.

Camus and Sartre admired each other's work before becoming friends

The two writers, who would later be considered two of the biggest names associated with existentialism, wrote positive reviews of each others' early work, with Camus praising Sartre's novel "Nausea" and story collection "The Wall" and, later, Sartre favorably compared Camus' "The Stranger" to Franz Kafka and Ernest Hemingway. Still, their reviews included some critiques, hinting at the larger disagreements that would come much later.

Simone de Beauvoir's 'The Second Sex' merged existentialism with feminism

De Beauvoir’s 1949 philosophical treatise criticized patriarchy and its negative impact on women. She argued that gender differences were mainly due to socialization rather than innate qualities, writing that “one is not born, but rather becomes, a woman.” In turn, de Beauvoir believed women should refuse predetermined gender roles and instead define themselves, echoing a key tenet of existentialism.

Many writers considered 'existentialist' didn't identify with the term

“Existentialism” was first introduced in 1943 by philosopher Gabriel Marcel. Jean-Paul Sartre and Simone de Beauvoir readily adopted the term, but others, such as Albert Camus and Martin Heidegger, rejected it. Earlier philosophers, like Søren Kierkegaard and Friedrich Nietzsche, were long dead by the time the word was in vogue.

Sartre spent his time in the French Army working on a novel

The writer's physical limitations (including partial blindness and balance issues) prohibited him from serving on the front lines. Instead, he worked as a military meteorologist. The job was not very demanding, so he spent most of his time writing. He told Simone de Beauvoir it was "extremely peaceful work; indeed I cannot think of any branch of the services that has a quieter, more poetic job."

Existentialist literature explores the philosophy's ideas

Existentialism isn't confined to philosophical texts. Some of the movement's figureheads, like Albert Camus and Jean-Paul Sartre, were also novelists. Christina Howells, Professor of French at the University of Oxford, suggests this is because existentialism, as a philosophy, requires human stories to be fully understood, and literature makes the experience of the human condition more present and immediate.

Camus and Sartre had a public falling out over communism

The two were close friends, sometimes collaborating throughout the 1940s, but the release of Camus' 1951 book, "The Rebel," led to a schism over differing views on communism.

Sartre and de Beauvoir's literary journal was named after a Charlie Chaplin movie

The couple founded the magazine Les Temps Modernes in 1945 and it quickly became essential reading for French intellectuals. Its name came from "Modern Times," Charlie Chaplin's 1936 movie that satirized the industrial revolution's dehumanizing effects.

Sartre admired American novelist William Faulkner

In addition to writing philosophy and fiction, Jean-Paul Sartre was also a literary critic. His 1939 essay on Faulkner's "The Sound and the Fury" focused on the way the American novelist commented on time, favorably comparing him to Marcel Proust. Ultimately, Sartre argues Faulkner's "despair" about a "closed future" is a result of the "social conditions of our present life." Ever the existentialist, though, Sartre suggests this reality is something that should inspire rather than depress.

Jean-Paul Sartre believed 'existence precedes essence'

The existentialist figurehead argued that humans are not born with an identity or purpose; instead, they develop them throughout their lives. For Sartre, this meant making meaning for oneself rather than relying on authorities (like religion or government) to provide it.

Sartre believed those who deny their own freedom are operating in 'bad faith'

In "Existentialism is a Humanism," Sartre argues that humans are "condemned to be free"—they are not confined to a divine fate, which means they must take the responsibility of creating their own destinies. Those who reject this freedom, by his estimation, are living in "bad faith."

The FBI kept tabs on Camus and Sartre

Jean-Paul Sartre worked as an American correspondent for Combat, the newspaper edited by Albert Camus. While he was in the States, J. Edgar Hoover's FBI kept tabs on him, concerned that Combat was publishing unfavorable portrayals of the US.

In the 1950s, the Vatican included Simone de Beauvoir's 'The Second Sex' on its list of forbidden books.

Sartre was an elaborate prankster as a student

After Charles Lindbergh completed his first solo transatlantic voyage in 1927, the French philosopher—then a student at Paris' École normale supérieure—called various newspapers to tell them the American pilot would be granted an honorary degree. Over 500 people showed up to find a Lindbergh lookalike Sartre had hired. "The public fell for it, and an old man even kissed his hand," Sartre later wrote.

Simone de Beauvoir, the influential feminist and existentialist philosopher, was a serious hiker.

Sartre's 1980 funeral attracted a massive crowd

The legendary existentialist died April 15, 1980. A week later, mourners packed the streets of Paris to pay tribute. Estimates suggest that between 20,000 and 50,000 people were in attendance. In the Associated Press footage below, you can watch them following the hearse from the hospital where the thinker died to his resting place in Montparnasse Cemetery.

Simone de Beauvoir's lone play has mostly been overlooked

Although primarily known as a philosopher, Beauvoir wrote the play "The Useless Mouths," which debuted in Paris in November 1945. The work is about a government allowing "useless" citizens—women, children, the elderly—to starve during a food shortage. While it's not widely staged, some Beauvoir scholars believe it's a significant text that explores many of the existential themes she explores in her other work.

Jean-Paul Sartre worked on 'Being and Nothingness' while a prisoner of war

The Nazis invaded France in May 1940. Sartre, as a member of the French Army, was taken prisoner that June. While he was in captivity, he studied Martin Heidegger and worked on "Being and Nothingness," one of his most famous philosophical works.

Novelist Richard Wright joined the existentialists in Paris

The author of “Black Boy” and “Native Son” left the United States in 1946 to escape his home country’s racial inequality. In Paris, he explored existentialist ideas and spent time with Simone de Beauvoir and Jean-Paul Sartre. “The Outsider,” a novel he wrote while living in France, embraced many of the philosophy’s central themes.

Jean-Paul Sartre was amazed by American jazz

The French philosopher wrote about a 1947 trip to a New York jazz club as a transcendent experience, describing the magic of the relationship between performer and audience: "You shout, they shriek, they whistle, they are possessed, you are possessed."

Camus directed a Picasso-penned play

The show, called "Desire Caught by the Tail," was written by Picasso in 1941 while living in Nazi-occupied Paris. It was first staged in 1944, featuring several French intellectuals, including Albert Camus, who directed, as well as Jean-Paul Sartre and Simone de Beauvoir, who had starring roles.

A mescaline-induced hallucination stayed with Jean-Paul Sartre throughout his life

In 1935, Sartre was injected with mescaline, a psychedelic drug that was then used to treat alcoholism and depression, by his friend at the Hôpital Sainte-Anne in Paris. It was not a good trip: Sartre saw nightmarish crabs for days and suffered a mental breakdown. For the rest of his life, crustaceans like the ones he saw during the hallucination appeared in his works.

Sartre eventually denounced communism

The French philosopher was a long-time ardent supporter of communism and the USSR. He finally spoke out against the movement with the 1956 Soviet invasion of Hungary, saying that the move was "made possible by 12 years of terror and imbecility."

Existentialism is a loosely defined philosophy that encouraged authentic living

The writers and thinkers often characterized as “existentialist” sometimes contradict one another. Considering that, boiling the philosophy down to a set of tenets can be difficult. Generally, those associated with existentialism were inspired by the 19th-century works of Søren Kierkegaard and Friedrich Nietzsche, and they believed that individuals needed to defy conformity and define the meaning of life for themselves.

Salvador Dalí and Coco Chanel bonded over art and fashion

In the late 1930s, Chanel hosted the eccentric artist to like and work in her home. Despite their differing styles, the two icons collaborated, and Chanel even inspired Dalí to mimic her perfume in his artwork.

Sartre panned 'Citizen Kane'

Jean-Paul Sartre was primarily known for his philosophy, fiction, and drama, but he was also a critic. In 1945, he wrote a rather negative review of Orson Welles' "Citizen Kane," deriding Welles' decision to tell the story in the past tense, writing, "film in the past tense is the antithesis of cinema. Therefore 'Citizen Kane' is not cinema."

Existentialism has been used as a therapeutic tool, with 2 Swiss psychiatrists pioneering the philosophy's concepts to help patients navigate their issues.

Sartre wrote an 8-hour screenplay for a Freud biopic

Sartre was hired to write the screenplay for what would eventually become John Huston's 1962 film "Freud: The Secret Passion," about the life of the psychoanalyst. Sartre, however, had trouble sticking to the parameters of Hollywood. An early draft was estimated to be five hours long. Rather than shortening it, as Huston suggested, Sartre extended it to eight hours and was eventually removed from the production.

James Beard and Julia Child were close friends and collaborators

The duo met when she was promoting her seminal book “Mastering the Art of French Cooking” in 1961. They quickly bonded, even referring to themselves as “Jiji,” a combination of Julia and Jim. Child, though, was initially prejudiced against Beard for being openly gay, which was rarer at that time.

Jean-Paul Sartre famously wrote that 'Hell is—other people'

The line appears toward the end of the play "No Exit." One character, realizing that he's confined to live out the rest of his days with the play's other two characters, exclaims, "There's no need for red-hot pokers. Hell is—other people!"

Philosopher and playwright Jean-Paul Sartre staged his first play while he was imprisoned in a POW camp.

Jean-Paul Sartre rejected his Nobel Prize for literature

Sartre won the award in 1964, but refused it, explaining, "The writer must therefore refuse to let himself be transformed into an institution, even if this occurs under the most honorable circumstances, as in the present case."

Existentialism inspired Franklin Roosevelt and Martin Luther King Jr.

The Danish philosopher, sometimes called “the father of existentialism,” believed that individuals needed to resist the temptation of conformity and instead discover their authentic selves. His work became remarkably influential in the 20th century. In 1944, Roosevelt said that reading Kierkegaard made him understand how the Nazis could’ve enacted so much violence. In 1959, King wrote that existentialism was “especially meaningful for our time.”

One teacher's lesson on existentialism and social media use

During a unit on existentialist literature and philosophy, one teacher at Massachusetts’ Phillips Academy asked students to surrender their cell phones to test Kierkegaard’s thoughts on the danger of conformity and Sartre’s belief that humans are “condemned to be free.” Many of them were surprised to find how liberated they felt once they left behind social media.

Marina Abramović and Ulay worked and lived together for 12 years

Their infamous body of work, known as “The Relation Works,” aimed to explore the dynamics between male and female partnerships, exposing power imbalances and frustration. (This resource contains some artistic nudity.)

Existential dread still informs popular comedies

Although the Theater of the Absurd was primarily a 20th-century trend, a similar kind of existentialist-minded comedy still exists in popular culture. Films like “Everything Everywhere All At Once” and television shows like “BoJack Horseman” tackle the same issues that existentialist thinkers like Sartre, Beauvoir, and Camus explored, transforming those profound questions into thought-provoking and crowd-pleasing works of comedy.

Scholars trace existential anxiety back to early Hebrew scriptures

Paul Megna, a scholar of literature and philosophy, notes that the existentialist ideas of Kierkegaard (and, to a lesser extent, Sarte and Camus) had their roots in much earlier texts, which posited that "fear of the Lord" was "the beginning of wisdom."

Jacques Louis David was a prime foil for the romantics

French painter Jacques Louis David was a defining figure of the neoclassical movement, using historical scenes and a polished sheen to present work that was as close to the real world as humanly possible. That made him an obvious foil for the romantics, who embraced raw feeling over accuracy.

An existentialist reading list

If you’re looking for a starting point for diving into existentialist thought, this is a great resource. Its titles are not exactly obscure—Albert Camus’ “The Stranger,” Franz Kafka’s “The Trial,” and Søren Kierkegaard’s “Either/Or” are among the most famous works in Western literature—but the list provides some digestible context for each text, which will help you decide the best place to begin your journey.