He pulled no punches.
Some rants of his that I more recently discovered:
"Religion is bullshit!"
http://www.youtube.com/watch?v=MeSSwKffj9o"Religion easily has the greatest bullshit story ever told. Think about it, religion has actually convinced people that there's an INVISIBLE MAN...LIVING IN THE SKY...who watches every thing you do, every minute of every day. And the invisible man has a list of ten special things that he does not want you to do. And if you do any of these ten things, he has a special place full of fire and smoke and burning and torture and anguish where he will send to live and suffer and burn and choke and scream and cry for ever and ever 'til the end of time!
...But He loves you! He loves you, and he needs MONEY!"
"Sanctity of life" - Carlin's vicious teardown of anti-abortion fetus-fetishists.
http://www.youtube.com/watch?v=AvF1Q3UidWM"Conservatives want live babies so they can raise them to be dead soldiers".