It may be harder to describe the work of comedians than any other performers.
And harder still when you try to describe or explain the work of the late Richard Pryor.
The way he channeled his anger at his early life and society in general pushed the envelope of standup comedy in ways that made audiences alternatively nervous and convulsed with laughter.
Brothers David and Joe Henry look back at Pryor's life and work in the book Furious Cool. Joe Henry joins us.