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Socrates, indeed, when he was asked of what country he called himself, said, "Of the world"; for he considered himself an inhabitant and a citizen of the whole world.

"Hoyt's New Cyclopedia Of Practical Quotations" by Jehiel Keeler Hoyt, p. 911-17, Tusculanarum Disputationum, Book V. 37. 108, 1922.
Socrates, indeed, when he was asked of what country he called himself, said, Of the world; for he considered himself an inhabitant and a citizen of the whole world.