Euclid Quotes
Things which are equal to the same thing are also equal to one another.
Euclid (1956). “The Thirteen Books of Euclid's Elements”, p.222, Courier Corporation
"Euclid's Elements, Book I, Common Notion 8". Book by Euclid,
Quoted in Proclus, Commentary on the First Book of Euclid's Elementa
'Elementa' bk. 1, definition 2
Give him threepence, since he must make a gain out of what he learns.
Euclid (1956). “The Thirteen Books of Euclid's Elements”, p.3, Courier Corporation
Euclid, Phillips (1826). “Elements of Geometry, Containing the First Six Books of Euclid”, p.41
"Euclid's Elements, Book 7, Definition 11". Book by Euclid,
Euclid, Dana Densmore (2002). “Euclid's Elements: all thirteen books complete in one volume : the Thomas L. Heath translation”, Green Lion Pr