On Mon, 21 Feb 2005 20:01:52 GMT, "Casey Wilson" N2310D @ gmail.com
wrote in Q6rSd.40466$uc.27073@trnddc03::

the airman's certificate is a pilot's license to fly.

I think the distinction between a certificate and a license lies in
whether the holder has an intrinsic right, or is granted permission.
A certificate of competency enables the holder to exercise his right.
A license grants the holder permission to engage in an activity. A
right cannot be denied; a privilege can.