This insecurity obviously led him to seek any kind of attention he could, even if it was negative attention or - worse - positive reinforcement of his worst behavior by adoring fans.
The main originator of foul mouth media.
It's hard to say who was, but it is certain that Carlin wasn't.
Lenny Bruce would be a strong favorite - he was "working blue" in 1954, and gave a scandalous performance at Carnegie Hall in 1961.
George Carlin was clean enough for Johnny Carson appearances in 1966 - he did not become controversial until the 1972 recording/performances of "Seven Words You Can't Say On TV."
Carlin was a troubled man: I hope beyond hope that he was able to find some peace.
George Carlin was a brilliant comedian for many years.
Yet as he got older he seemed to me to become less funny
and much more cynical and bitter. RIP George.