I remember, as a teenager, being astonished by his frank and biting satire. One quote of his that I remember concerned racism in the South and North:
"In the South, they don't care how close you get, as long as you don't get too big,and in the North, they don't care how big you get as long as you don't get too close."

Also, he said in reference to churches worried about dwindling attendance that all they had to do was put tanks in front of a church and tell young people that they couldn't go in.