I didn't care too much for the vulgarity of his act. And I disagreed with him on a lot of things. But that still didn't stop me from appreciating that this was a man who was obviously very thoughtful and had a deep understanding of many matters that too many of us don't bother to contemplate. In that regard, Carlin was something like a conscience for this culture. Here's a clip demonstrating that (warning: harsh language):
In the end, I choose to remember Carlin as a man with a lot of intellect, who was talented at sharing that with others through many very different voices. This was a guy who did the "Seven Words You Can't Say On Television" and was just as comfortable doing voice work for children's cartoons (not to mention his movie work, like playing Rufus in Bill and Ted's Excellent Adventure... and Dogma 'course).
Rest in peace, Mr. Carlin.