Who said “Love is the condition in which the happiness of another person is essential to your own.”?

Verified

Robert Heinlein. A published source records them saying or writing it.

Source"Jubal Harshaw" in the first edition (1961); the later 1991 "Uncut" edition didn't have this line, because it was one Heinlein had added when he went through and trimmed the originally submitted manuscript on which the "Uncut" edition is based.

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“Love is the condition in which the happiness of another person is essential to your own.”
— Robert Heinlein
Verified"Jubal Harshaw" in the first edition (1961); the later 1991 "Uncut" edition didn't have this line, because it was one Heinlein had added when he went through and trimmed the originally submitted manuscript on which the "Uncut" edition is based. · evidenceLove
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Cite this quote

For academic work, cite the original where you can: "Jubal Harshaw" in the first edition (1961); the later 1991 "Uncut" edition didn't have this line, because it was one Heinlein had added when he went through and trimmed the originally submitted manuscript on which the "Uncut" edition is based..

APA

Heinlein, R. (n.d.). Love is the condition in which the happiness of another person is essential to your own. [Quotation]. Famous Quotations Network. Retrieved October 24, 2026, from https://www.famous-quotations.com/quotes/20916-love-is-the-condition-in-which-the-happiness/

MLA

Heinlein, Robert. “Love is the condition in which the happiness of another person is essential to your own.” Famous Quotations Network, https://www.famous-quotations.com/quotes/20916-love-is-the-condition-in-which-the-happiness/. Accessed 24 Oct. 2026.

Chicago

Heinlein, Robert. “Love is the condition in which the happiness of another person is essential to your own.” Famous Quotations Network. Accessed October 24, 2026. https://www.famous-quotations.com/quotes/20916-love-is-the-condition-in-which-the-happiness/.

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