“diplomacy, n.: The patriotic art of lying for one's country.”
“Diplomacy is the art of letting someone else have your way.”
“Diplomacy is the art of letting other people have your way.”
“To say nothing, especially when speaking, is half the art of diplomacy.”
“Diplomacy is the art of saying "Nice doggie" while looking for a bigger stick.”
“Patriots always talk of dying for their country but never of killing for their country.”