The iconoclast, who died Sunday from heart failure at 71, was practically a one-man history of American comedy - from the rise of '60s counterculture through the war on terrorism. For more than 40 years, this harsh critic of our shared foibles was determined to set us straight every step of the way. In nightclubs and eventually cable television, he did so in a pointed, profane style that challenged our standards for what could be said on the public airwaves.

It seems quaint in the more coarse pop culture of today, but Carlin's "Seven Dirty Words You Can Never Say on Television" routine led to a 1978 Supreme Court ruling that established the U.S. government's authority to regulate "indecent" language in broadcast shows - but made him an enduring symbol of First Amendment speech rights.

"Prior to George, all comedians wore ties and wanted to play Vegas," Jay Leno, host of The Tonight Show, said in an interview Monday. Carlin made 130 appearances on the show, beginning in 1961. His appearances reflected his shift from his clean-cut, suit-and-coat days to his grungy beard-and-ponytail era.

"I loved that he hated golf," Leno adds. "He'd say that these hundreds of acres were wasted just so that two guys could hit a ball. I think he was as riled up on the day he died as he was in the '60s when I first saw him."