
Zitiert in Leonard Mlodinow: "Das Fenster zum Universum. Eine kleine Geschichte der Geometrie", Campus Verlag 2002, ISBN 3-593-36931-1, Seite 176.
Original engl.: "Whatever difficulties we may have in forming a consistent idea of the constitution of the aether, there can be no doubt that the interplanetary and interstellar spaces are not empty, but are occupied by a material substance or body, which is certainly the largest, and probably the most uniform body of which we have any knowledge." - Maxwell, James Clerk (1878), “Ether”, Encyclopædia Britannica Ninth Edition 8: 568 - 572 en.wikisource http://en.wikisource.org/wiki/Encyclop%C3%A6dia_Britannica_Ninth_Edition/Ether