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Quotation from Elements, Book I by Euclid

“A line is length without breadth.”

Euclid

Elements, Book I, Book I, Definition ii, trans. John Casey

Portrait of Euclid

The second definition, which Casey explains by saying a line is space of one dimension.

Citation: "A line is length without breadth." — Euclid, Elements, Book I, Book I, Definition ii, trans. John Casey. (id euclid-elements-book-i-q2)

Portrait: Euclidi Megaren (Euclide) - Studiolo di Federico da Montefeltro, Justus van Gent / Pedro Berruguete, Public domain.

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Quote card: A line is length without breadth.