Hacker15e
Who am I? Where are my pants?
Felt like telling Derek Jeter how to swing a bat. Must say, though - incredibly impressed by the humility required to do that.
I think it more simply represents the wisdom that a lot of experienced aviators have, which says "the more I know, the more I know I don't know" -- that experience or skill in one area of aviation doesn't necessarily directly translate to another area of aviation. Often it does, but not without learning new things and adapting the old skills.
Unfortunately, there are also a lot of folks who let ego get in the way of that wisdom, and there are probably just as many folks who charge around saying (and believing!) "I'm a ________ pilot, I know what I'm doing."