“I am large, I contain multitudes.”
Leaves of Grass
Variant: I contradict myself. I am large. I contain multitudes.
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Walt Whitman 181
American poet, essayist and journalist 1819–1892Related quotes

No. 66.
Lettres Persanes (Persian Letters, 1721)

as quoted by Claudia Dreyfus in: [January 21, 2021, A Prodigy Who Cracked Open the Cosmos (an interview with Franck Wilczek), Quanta Magazine, https://www.quantamagazine.org/frank-wilczek-cracked-open-the-cosmos-20210112/]

Divan 1740:1-3, as translated by Fatemeh Keshavarz in Reading Mystical Lyric : The Case of Jalal al-Din Rumi (1998)
"At the San Francisco Airport" (1954)
The Collected Poems of Yvor Winters (1960)

Source: A Cafe in Space: The Anais Nin Literary Journal, Volume 3

Letter to William Short (31 October 1819)
1810s
Source: Letters of Thomas Jefferson