More commentary on the difference between professionals and amateurs:

"For any good man would rather take chances anyday with his life than with his livelihood and that is the main point about professionals that amateurs seem never to appreciate."

~ Ernest Hemmingway, "Notes on Dangerous Game: The Third Tanganyika Letter", Esquire: July 1934

(sketchbook from modern day Tanzania--formerly Tanganyika. Peter Durand, 1999)