I found the original article at:
http://www.washingtonpost.com/wp-dyn/articles/A10678-2002Apr7.html
The date on the article is actually April 8th.
--
Dr. Duane F. Marble
Professor Emeritus of Geography Telephone: 614-292-4419
Center for Mapping Fax: 614-292-8062
The Ohio State University
1216 Kinnear Road Email: marble.1(a)osu.edu
Columbus, Ohio 43212
The (first) act of mapping was as profound as the invention of a number
system. The use of a reduced, substitute space for that of reality, even
when both can be seen, is an impressive act in itself; but the really awesome
event was the similar representation of distant, out of sight features. The
combination of the reduction of reality and the construction of an analogical
space is an attainment in abstract thinking of a very high order indeed, for it
enables one to discover structures that would remain unknown if not mapped.
-- Arthur Robinson, Early Thematic Mapping in the History of Cartography