
Here's the full Friedman, as originally expressed in his 1962 book Capitalism and Freedom, then exposed to a larger audience in a 1970 New York Times Magazine article:
There is one and only one social responsibility of business — to use its resources and engage in activities designed to increase its profits so long as it stays within the rules of the game, which is to say, engages in open and free competition without deception or fraud.
See full Article.