Advertising, whether or not it sells cars or chocolate, surrounds us and enters into us, so that when we speak we may speak in or with reference to the language of advertising and when we see we may see through schemata that advertising has made salient for us.... [S]trictly as symbol, the power of advertising may be considerable.

Advertising, The Uneasy Persuasion: Its Dubious Impact on American Society, 1984, p. 210.