Quote by George Box
A man in daily muddy contact with field experiments could not be expected to have much faith in any direct assumption of independently distributed normal errors.
"Science and Statistics" in the Journal of the American Statistical Association, Vol. 71, No. 356. (Dec., 1976), pages 791-799, on page 795.
Please suggest source details if you know: book, page, year, online article address (url), correction (different author...), etc.. Thanks.