Walter Lippmann Quotes
Because the results are expressed in numbers, it is easy to make the mistake of thinking that the intelligence test is a measure like a foot ruler or a pair of scales. It is, of course, a quite different sort of measure. Intelligence is not an abstraction like length and weight; it is an exceedingly complicated notion - which nobody has yet succeeded in defining.
Lippmann, Walter. "The Mental Age of Americans." The New Republic, vol. 32, no. 412, 25 Oct. 1922, p. 213.
Walter Lippmann was an American writer, reporter and political commentator. With a career spanning 60 years he is famous for being among the first to introduce the concept of Cold War, coining the term "stereotype" in the modern psychological meaning, as well as critiquing media and democracy in his newspaper column and several books, most notably his 1922 book Public Opinion.