"A man sits in an office deciding what stocks to buy. He imagines, no doubt, that he is planning his purchases according to his own judgment. In actual fact his judgment is a melange of impressions stamped on his mind by outside influences which unconsciously control his thought. He buys a certain railroad stock because it was in the headlines yesterday and hence is the one which comes most prominently to his mind; because he has a pleasant recollection of a good dinner on one of its fast trains; because it has a liberal labor policy, a reputation for honesty; because he has been told that J. P. Morgan owns some of its shares."
Edward L. Bernays