Louis C. K. Quotes:
Ocupation: Comedian
Life: b. September 12, 1967
Birthday: September 12
Pushing the envelope' sort of implies that you're inside the envelope with everyone else, and you're trying to find the edges on the outsides.
source: "Louis C.K. on Twitter and Tracy Morgan". Interview with Austin L. Ray, www.cnn.com. June 21, 2011. 
topic: Trying, Envelopes, Pushing, Pushing The Envelope
