From a New York Times column by Jane Coaston headlined “The Debate Hugh Hefner Won and William Buckley Lost”:

In 1966, William F. Buckley Jr., the founder of National Review, hosted Hugh Hefner, the founder of the wildly successful Playboy magazine, on Mr. Buckley’s weekly public affairs show, “Firing Line,” for a discussion of sexual ethics.

On the show, Mr. Buckley quoted Mr. Hefner as having argued that “man’s morality, like his religion, is a personal affair best left to his own conscience.” With Mr. Hefner dressed in a suit and Mr. Buckley sounding, as usual, like a parody of himself, Mr. Hefner described his view as “anti-puritanism, a response really to the puritan part of our culture.” Mr. Buckley did not like Mr. Hefner. Or, more accurately, he did not like his philosophy.