Simone de Beauvoir and Jean Paul Sartre: An Existential Love Story
By Hannah Brown | On July 26, 2018 | Updated May 1, 2025 | Comments (6)
The two intellectuals known as the mother of modern feminism and father of existentialism shared a half-century partnership that defied the conventions of their time and ours.
From 1929, when Simone de Beauvoir and Jean-Paul Sartre met in the same elite graduate program in philosophy, to when they were buried side-by-side in the Cimetiere du Montparnasse, they shared each other’s work and lives without ever sharing a home.
De Beauvoir and Sartre were classmates and competitors at the Sorbonne in 1929, studying for the aggregate in philosophy, a prestigious graduate degree. Although Sartre’s marks surpassed de Beauvoir’s, she was, at 21, the youngest person ever to pass the exam.
The love affair
In October of that year, the two began their romantic partnership, an experiment in personal responsibility and open-heartedness. De Beauvoir, who had defied social pressures earlier in life by renouncing the Catholic faith, flouted expectation yet again by turning down a marriage proposal from Sartre.
Instead, the couple came to an agreement that rejected what they considered bourgeois hypocrisy – that is, the patriarchal expectation that married men engage in extramarital affairs and lie to their wives, who, in turn, stoically feign ignorance.
Rather than pretending at monogamy, the lovers each had the freedom to pursue sexual and romantic relationships outside their own. The only condition was total transparency.
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Philosophical Quotes by Simone de Beauvoir
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An open relationship
The pair never married or shared a home. Instead, they met daily in Parisian cafés to talk, write, edit each other’s work, and often, share details of their secondary liaisons.
Their intellectual and emotional intimacy persisted for 51 years, through Sartre’s traumatic service and capture in World War II and long after the sexual component of the philosophers’ “soul marriage” had faded away.
Simone de Beauvoir never published a piece of writing without her partner’s input until after his death. Likewise, he referred to her as a “filter” for his books, and some scholars have even made the case that she wrote some of them for him.
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More about Simone de Beauvoir’s life and work
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Trouble in paradise
De Beauvoir and Sartre’s partnership and unconventional relationship had high visibility within the tightly-knit social circle that was the center of both their social and professional lives.
As part of the Parisian intellectual community, their circumstances created a keenly-felt pressure to present a harmonious front.
Scholars and journalists often accuse de Beauvoir of publicly masking painful bouts of jealousy. While her inner emotional life is unclear, what’s evident is the manipulative, often dishonest, and arguably cruel treatment to which both Sartre and de Beauvoir subjected much-younger female consorts.
Dangerous liaisons
Take, for example, 16-year-old Bianca Bienenfeld, a student of de Beauvoir’s who was 14 years her junior. Soon after the two women began their affair, de Beauvoir introduced her lover to Sartre. He promptly made it his mission to seduce Bienenfeld.
After a romantic entanglement between the three of them, de Beauvoir told Sartre to end it, which he abruptly did in a letter. Bienenfeld, who was Jewish, later narrowly escaped the Nazi occupation of France. Neither de Beauvoir nor Sartre tried to find her.
When she read “Letters to Sartre” and saw the flippant tone the pair took toward her, she said, “Their perversity was carefully concealed beneath Sartre’s meek and mild exterior and the Beaver’s serious and austere appearance. In fact, they were acting out a commonplace version of ‘Dangerous Liaisons.’”
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Simone de Beauvoir books on Bookshop.org*
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An appetite for conquest
Bienenfeld may be an extreme example, but she’s not atypical. Sartre tended to treat younger romantic prospects (all of whom were female) more as conquests than partners, spending months or years persuading them to get into bed with him and then bouncing off to regale “the Beaver” with details.
Sartre would pay his mistresses’ rent to ensure they were nearby while trying to keep them ignorant of each other. De Beauvoir was sometimes among the deceived, but at other times she was his accomplice in deception.
For her part, de Beauvoir’s outside relationships appear more amorous and tended to be longer-term.
There was Nelson Algren, the American novelist, with whom she shared a decade of transatlantic love letters, addressing him as her “beloved husband.” He was a thinly veiled character in her 1954 novel, The Mandarins.
She even lived with Claude Lanzmann, a French filmmaker, for the bulk of the 1950s. But these were her relationships with men.
When it came to her same-gender partnerships, de Beauvoir tended to be more exploitative. There was the painful entanglement with Bienenfeld described earlier, for example, and an affair with Natalie Sorokine, a 17-year-old student, which cost de Beauvoir her teaching license.
Iconic but flawed
If we can learn anything from looking back on Simone de Beauvoir and Jean-Paul Sartre’s romantic lives and partnerships, it’s that an incredible intellect and a world-changing body of work don’t render a person free of flaws.
The love they had for each other is as undeniable as the harm that befell many who became entangled with it. Still, we can count among the many questions that de Beauvoir raised in her life and writing: When free of gendered and oppressive social expectations, what does love look like?
A passage in a letter from Sarte to de Beauvoir:
“Tonight I love you in a way that you have not known in me: I am neither worn down by travels nor wrapped up in the desire for your presence. I am mastering my love for you and turning it inwards as a constituent element of myself. This happens much more often than I admit to you, but seldom when I’m writing to you. Try to understand me: I love you while paying attention to external things. At Toulouse I simply loved you. Tonight I love you on a spring evening. I love you with the window open. You are mine, and things are mine, and my love alters the things around me and the things around me alter my love.”
And Simone de Beauvoir, on her relationship with Sartre:
“We were two of a kind, and our relationship would endure as long as we did: but it could not make up entirely for the fleeting riches to be had from encounters with different people.”
Quotes from Letters from Simone de Beauvoir
(Translated and edited by Quintin Hoare. Arcade Publishing, NY ©1990, 1991) Simone de Beauvoir and Sartre kept quite a correspondence throughout the years they were together. Though they consisted of much more than declarations of love, those often bookended her letters to him. This is but a very small sampling:
“If one has to be ill, it’s nice to do so just after you’ve left, my dearest love. I’d be sliding from sleep into wakefulness and back, without ever quitting the memories of that miraculous week we spent together. There you were at my side, dearest little man, all tenderness and solicitude —like at That Lady’s last Sunday — and as for me, I was brimming over with love for you and happiness.” (January 6, 1930)
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My love, I never felt our love more strongly than that evening at Les Vikings, where you gazed at me so tenderly I felt like weeping. And what a delightful train took us to Saint-Germain, my love! If I weren’t so uncomfortably positioned for writing, I’d spend pages telling you how happy I am and how much I love you. But I take comfort from the fact that you felt it clearly yourself, didn’t you, little man? Here are a hundred kisses, each carrying the same message. (January 6, 1930)
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“Goodbye, my love. I’m lacerated everywhere by being far away from you after all these days — what a delightful little face you had this morning, curled up beside me in your little cocoon. I kiss you passionately.” (July 28, 1935)
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“I’m quite overcome at the thought that I’ll see you disembarking from the train on Saturday, carrying your suitcase and my red hatbox — I can already picture us ensconced on our deckchairs overlooking a lovely blue sea and talking nineteen to the dozen — and I feel a great sense of well-being.” (July 27, 1938)
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“I’m quite peaceful as you can see, dear little being. It seems to me too as though we were talking, when I write to you or especially when I receive a letter — it makes me feel close, so close. From time to time I look at your photos, and then I’m tempted to feel sad. But I feel so joined to you that I haven’t yet realized I won’t see you for a long while. I love you, my beloved, I cover your eyes, your cheeks, your whole dear face with kisses.” (September 10, 1939)
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You might also like:
8 Literary Love Affairs and Marriages
Further reading
- Tete-a-Tete: The Tumultuous Lives and Loves of Simone de Beauvoir
and Jean-Paul Sartre by Hazel Rowley - A Dangerous Liaison: A Revelatory New Biography of Simone de Beauvoir
and Jean-Paul Sartre by Carole Seymour-Jones - Simone De Beauvoir and Jean-Paul Sartre: The Remaking of
a Twentieth-Century Legend by Kate and Edward Fullbrook - Contingent Loves: Simone de Beauvoir and Sexuality by Melanie C. Hawthorne
- Letters to Sartre by Simone de Beauvoir
— Contributed by Hannah Brown
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Thanks for seeing and make us see them in their completeness to an extent. I’ve been interested in their remarkable work from ‘Being and Nothingness” to “The Second Sex”. I think the creation and the creator are two different things. Their creations, their contributions to intellectual world, their path breaking ideas far surpass their personal human weaknesses or flaws.
I have never read about them before, until started to listen to “Love in a Time of Hate,” where they briefly mentioned them. After reading this short description about them in this blog post. I can only think that they were scum. And to think that these “scum” were so “influential” at the time, provides an explanation why today the world is so bad.
I don’t know why humans in general tend to idolize idiotic people, specially when they write idiotic things out self pleasure and self desire, just to justify our wicked behaviors as something acceptable. They were con artists. Obviously, they both had a long life career of emotionally spoofing and luring young girls to satisfy their predatory sex hunger.
Yet, they are regarded as “most influential” for “feminism” and “existentialism.” Is like adoring the acts of the devil and calling them “art works” and “theory.” But the devil non the less.
I have to say…so what. People are jealous, manipulative, exploitive, passionate and ultimately, ridiculous. Who cares? They wrote interesting works. We still read them and think about what they said. And also ultimately, not interesting. We are all voyeurs, in some way or another.
Because they wrote interesting works you’re able to ignore the young lives they tortured to the point of suicide? You must be really easy to please. Have some self-respect.
Wow, Lynne, that is cold. A few young things got hurt along the way, that’s life?? They were sexually exploiting young women, some even killed themselves. We have to stop protecting people of status when they do awful things. They are NOT above the law.
I think that they were two remarkable people so a few young things get hurt along the way it is part of life They were both unconventional for the times that they were living I would have loved to have known them