“One young lady asserted that she had never looked at any of the cards in the cars in which she had been riding for years. When questioned further, it appeared that she knew by heart almost every advertisement appearing on the line (Chicago and Evanston line), and that the goods advertised had won her highest esteem. She was not aware of the fact that she had been studying the advertisements, and flatly resented the suggestion that she had been influenced by them. Some of the goods advertised were known to her only by these advertisements, yet she supposed that they had nothing to do with her esteem of the goods. She supposed that she had always known them, that they were used in her home, or that they had been recommended to her. She did not remember when she had first heard of them.”

Source: The Psychology of Advertising in Theory and Practice, 1908, p. 370-371