Winston Churchill? Caskie Stinnett? Gary Knafelc? Vince Lombardi? Viola Layne? Earl Wilson? Joe Williams? Anonymous? Dear Quote Investigator: Diplomacy is a difficult profession that rewards sensitivity and great verbal dexterity. The following witticism has been credited to travel writer and humorist Caskie Stinnett: A diplomat is a person who can tell you to go to …