Critics of advertising usually forget that if it were eliminated or abolished, other methods would necessarily be substituted for it. If you abolished the advertising of hats, either by law or by common agreement, the same manufacturers would resort to other methods of competition in personal salesmanship to a corresponding extent. This might be and probably would be a still more costly means to attain the same ends that are accomplished through printed publicity.

Principles of Advertising (A.W. Shaw Company, 1923), p. 113