You’ve heard the name Richard Feynman — the bongo‑playing, Nobel‑winning physicist who helped build the atomic bomb and then spent the rest of his life explaining quantum weirdness to anyone who would listen. Britannica (encyclopedic reference) called him “one of the most brilliant, influential, and iconoclastic figures in postwar theoretical physics.” This article cuts through the lore to answer the questions people actually ask about Feynman — from his IQ to his last words — using verified sources to separate fact from legend.
Full name: Richard Phillips Feynman · Born: May 11, 1918 · Died: February 15, 1988 · Nobel Prize: 1965, Physics · Known for: Feynman diagrams, quantum electrodynamics, Manhattan Project
Quick snapshot
- Nobel Prize in Physics (1965) for quantum electrodynamics (Richard Feynman official site (biography))
- Developed Feynman diagrams in the 1940s (MIT (academic paper))
- Worked on the Manhattan Project at Los Alamos (Britannica)
- Exact IQ score (self-reported 124, no official document) (Britannica (biography))
- Einstein’s exact words to Feynman (accounts vary slightly) (Wikipedia (community encyclopedia))
- Number of hours Feynman slept nightly (anecdotal only) (Britannica (biography))
- 1918: Born in New York City (Britannica)
- 1942: PhD from Princeton, joins Manhattan Project (Official site)
- 1965: Nobel Prize in Physics (Atomic Heritage Foundation (nuclear history museum))
- 1988: Dies of abdominal cancer (Britannica)
- Feynman’s legacy continues to influence quantum physics, education, and popular science culture. (Wikipedia (community encyclopedia))
- Ongoing research into Feynman diagrams remains foundational in particle physics. (MIT (academic paper))
Six essential facts about Feynman that any biography should start with — each confirmed by primary or secondary sources.
| Field | Detail |
|---|---|
| Full name | Richard Phillips Feynman |
| Born | May 11, 1918, New York City (Britannica) |
| Died | February 15, 1988, Los Angeles (Britannica) |
| Education | MIT (BS, 1939); Princeton (PhD, 1942) (Britannica) |
| Notable award | Nobel Prize in Physics (1965) (Official site) |
| Field | Theoretical physics (quantum electrodynamics) |
What is Richard Feynman most famous for?
Quantum electrodynamics and Feynman diagrams
- Feynman invented Feynman diagrams in the late 1940s as a way to visualize particle interactions in quantum electrodynamics (Britannica (science encyclopedia)).
- The first published diagram appeared in his 1949 paper “Space-Time Approach to Quantum Electrodynamics” (Fermilab History Office (particle physics archive)).
- These diagrams remain a fundamental tool in particle physics today (MIT (academic paper)).
Feynman diagrams reduced what were once pages of complex calculations into simple sketches. For a generation of physicists, they became the shortcut that made quantum electrodynamics practically usable.
Manhattan Project involvement
- According to Wikipedia (community encyclopedia), Feynman was recruited by Robert R. Wilson after Pearl Harbor and assigned to the Manhattan Project at Los Alamos.
- He became the youngest group leader in the theoretical division (Britannica).
Nobel Prize in Physics (1965)
- Feynman shared the 1965 Nobel Prize in Physics with Julian Schwinger and Shin’ichirō Tomonaga for their independent contributions to quantum electrodynamics (Official site).
- His work combined the path integral formulation and Feynman diagrams to resolve infinities in QED (Atomic Heritage Foundation (nuclear history museum)).
The implication: Feynman’s fame rests on a mix of theoretical genius and a war‑era role that few scientists ever experience. That blend made him a household name, but it also obscured the quieter work of his contemporaries.
What was Richard Feynman’s personality like?
Curiosity and unconventional thinking
- Colleagues described Feynman as intensely curious, playful, and charismatic – someone who treated physics as a game to be enjoyed (Britannica).
- He was known for picking locks at Los Alamos just for fun, demonstrating a mischievous side that frustrated security but amused his peers (Wikipedia).
Feynman’s playful exterior hid a relentless intellectual rigor. He refused to accept explanations he couldn’t derive from first principles, a habit that made him both entertaining and intimidating in the classroom.
Love for teaching and bongo drums
- Feynman was a legendary teacher, known for his accessible lectures at Caltech, later published as “The Feynman Lectures on Physics” (Britannica).
- He played bongo drums at parties and even performed with a ballet company, reflecting his broad artistic interests (Official site).
Honesty and irreverence
- Feynman valued intellectual honesty above all, famously saying “The first principle is that you must not fool yourself — and you are the easiest person to fool” (Wikipedia).
- He was a fierce critic of pseudoscience, educational gimmicks, and anything he considered dishonest (Britannica).
What this means: Feynman’s personality was inseparable from his science. His irreverence helped him see problems fresh, but it also made him a polarizing figure — adored by students, exasperating to some colleagues. Sergey Brin: Religion, Politics, Net Worth, and Personal Life shares a similar disregard for conventional wisdom in his own field.
What did Einstein think of Feynman?
Einstein’s limited but positive remarks
- According to Feynman’s own recollection, Einstein told him at Princeton in the 1940s: “You are a very clever young man” (Wikipedia (community encyclopedia)).
Context of the Princeton encounter
- Einstein died in 1955, before Feynman’s major quantum electrodynamics work was fully recognized (Britannica).
- No extensive correspondence or documented extended conversation exists between them (Wikipedia).
The catch: The famous “clever young man” quote is charming, but it represents the extent of Einstein’s direct engagement. Feynman’s rise to prominence came after Einstein’s death, so we can only guess what the older physicist might have thought of Feynman diagrams.
What was the IQ of Feynman?
Self-reported test score
- Feynman claimed his IQ was 124, but he dismissed the test as a weak measure of intelligence (Britannica (biography)).
Debate over IQ as a measure
- His close friend and biographer James Gleick notes Feynman’s measured IQ was 124, but no independent official record of this test exists (Wikipedia (community encyclopedia)).
- Feynman’s achievements far exceed any single IQ score, illustrating the limitations of standardized tests (Britannica).
Feynman’s self‑reported IQ of 124 is often cited by skeptics of IQ testing. But it’s a single number with no verified source — treating it as meaningful distracts from the actual evidence of his cognitive abilities.
Why this matters: The IQ story persists because it’s a satisfying anecdote about a genius who didn’t test well. It tells us more about the public’s hunger for a number than about Feynman’s mind.
Did Richard Feynman believe in a god?
Self-identification as agnostic
- Feynman described himself as an agnostic and stated “I am an atheist” in some interviews, as recorded in “The Pleasure of Finding Things Out” (Britannica).
Views on organized religion
- He rejected the anthropomorphic god of many religions but expressed awe about the universe (Wikipedia (community encyclopedia)).
- He was a strong critic of pseudoscience and dogmatism (Britannica).
The pattern: Feynman’s spiritual stance was consistent with his scientific worldview: he embraced uncertainty and rejected dogma. For readers seeking a simple label, “agnostic” fits best.
How many wives did Richard Feynman have?
Arline Greenbaum (m. 1942, died 1945)
- Feynman married Arline Greenbaum in 1942. She died of tuberculosis while he worked at Los Alamos (Wikipedia (article)).
Mary Louise Bell (m. 1952, divorced 1956)
- His second marriage to Mary Bell ended in divorce after four years (Wikipedia).
Gweneth Howarth (m. 1960, until his death)
- Feynman married Gweneth Howarth in 1960; they had two children, Carl and Michelle (Britannica).
What this means: Feynman’s three marriages reflect a personal life as eventful as his professional one. The loss of his first wife shaped him deeply, and his final marriage provided the stability he lacked in the 1950s.
What were Richard Feynman’s last words before he died?
Reported last words
- According to his daughter Michelle, Feynman’s last words were “I’d hate to die twice. It’s so boring.” (Wikipedia (community encyclopedia))
Context of his death
- Feynman died of abdominal cancer (liposarcoma) on February 15, 1988 (Britannica).
The implication: Even in his final moment, Feynman’s wit didn’t abandon him. The quote, if accurate, perfectly encapsulates his irreverent attitude toward existence.
Timeline of key events
- 1918 – Born in Far Rockaway, Queens, New York City. (Official site)
- 1939 – Graduates from MIT with a bachelor’s degree in physics. (Britannica)
- 1942 – Receives Ph.D. from Princeton University; joins Manhattan Project. (Britannica)
- 1945 – First wife Arline dies of tuberculosis. (Wikipedia)
- 1951 – Joins faculty at California Institute of Technology (Caltech). (Britannica)
- 1965 – Awarded Nobel Prize in Physics for quantum electrodynamics. (Official site)
- 1986 – Serves on Rogers Commission investigating Challenger disaster. (Britannica)
- 1988 – Dies of abdominal cancer. (Britannica)
The pattern: Feynman’s life was a series of intense bursts — from wartime secrecy to Nobel recognition to public service — each phase adding to his legend.
What we know vs. what remains unclear
Confirmed facts
- Feynman won Nobel Prize in 1965 for quantum electrodynamics. (Official site)
- He developed Feynman diagrams. (Britannica)
- He worked on the Manhattan Project at Los Alamos. (Britannica)
What’s unclear
- Exact IQ score (self-reported 124, not officially documented). (Wikipedia)
- Whether Einstein’s remark was “clever young man” or something else verbatim — accounts vary slightly. (Wikipedia)
- Precise number of hours Feynman slept each night (anecdotal reports vary).
- His identification as agnostic/atheist (self-reported, but no formal declaration). (Britannica)
- Exact number of marriages (three, but some sources count differently). (Wikipedia)
- Cause of death (abdominal cancer, but some accounts mention liposarcoma). (Britannica)
The gaps in our knowledge highlight the limits of historical record and the persistence of anecdotal claims.
Quotes that capture the man
“You are a very clever young man.”
“What I cannot create, I do not understand.”
“I’d hate to die twice. It’s so boring.”
Feynman was not a superhero — he was a deeply curious, flawed, and brilliant human being. His contributions to physics are solid; many of the stories about him are less so. For the modern physics student, the implication is clear: study the diagrams, not the myths. For more profiles of iconic scientists, see our list of Famous People.
physics.weber.edu, philsci-archive.pitt.edu, faculty.washington.edu, faculty.washington.edu, quantumphysicsauthority.com, jesseliu.com
Frequently asked questions
How many hours did Feynman sleep?
No reliable record exists. Anecdotal accounts from colleagues suggest he slept irregularly, often working late into the night. There is no documented average.
What is Feynman’s most famous quote?
“What I cannot create, I do not understand.” It was found on his blackboard after his death.
What did Richard Feynman say about the purpose of life?
Feynman often said the purpose of life was to enjoy it, to learn, and to satisfy curiosity. He dismissed grand teleological explanations.
Did Richard Feynman have any children?
Yes, two: Carl Feynman (born 1962) and Michelle Feynman (born 1968) with his third wife Gweneth.
What was Richard Feynman’s cause of death?
Abdominal cancer (liposarcoma) on February 15, 1988.
These questions reflect the public’s enduring curiosity about Feynman’s life and work.
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Edward Davies Bennett is Editor-in-Chief and Responsible Publisher at Insight Britain, overseeing editorial standards, publication decisions and the corrections process.