“So this is hell. I'd never have believed it. You remember all we were told about the torture-chambers, the fire and brimstone, the "burning marl." Old wives' tales! There's no need for red-hot pokers. Hell is—other people!”
Garcin, Act 1, sc. 5
Variant: So that is what hell is. I would never have believed it. You remember: the fire and brimstone, the torture. Ah! the farce. There is no need for torture: Hell is other people.
Source: No Exit (1944)
Original
Alors, c’est ça l’enfer. Je n'aurais jamais cru… vous vous rappelez: le soufre, le bûcher, le gril… ah! Quelle plaisanterie. Pas besoin de gril, l'enfer, c'est les autres.
No Exit (1944)
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Jean Paul Sartre 321
French existentialist philosopher, playwright, novelist, sc… 1905–1980Related quotes

Letter to Eunice Lovejoy https://books.google.com/books?id=qMEv8DNXVbIC&pg=PA192#v=onepage&q&f=false
1860s

“I am not like
other people.
I am
burning in hell. the hell of
myself.”

“I am not like other people. I am burning in hell. The hell of myself.”
Part One: The Hidden People, "The Quarrlsome Piper" p. 19
The Little Country (1991)

“…but every lyar
Must have his portion in the lake
That burns with brimstone and with fire.”
Song 15: "Against Lying".
1710s, Divine Songs Attempted in the Easy Language of Children (1715)