Question about Richards material

[OoLennyBruceoO]

Hey, I'm 17 and a huge fan of Pryors, hes probably the biggest influence in me wanting to be a stand-up comic. Anyway, I wanted to know, did Rich do a lot of writing when it came ot his material on stage or did he have it all in his head. And if he did write, would he sit down for a while and think of stuff or if he already had an idea would he sit down and work on it? Just curious, Thanks

-Rob