Respectfully Quoted: A Dictionary of Quotations. 1989.
Sir Harold George Nicolson (18861968)
These, then, are the qualities of my ideal diplomatist. Truth, accuracy, calm, patience, good temper, modesty and loyalty. They are also the qualities of an ideal diplomacy. But, the reader may object, you have forgotten intelligence, knowledge, discernment, prudence, hospitality, charm, industry, courage and even tact. I have not forgotten them. I have taken them for granted.
HAROLD NICOLSON, Diplomacy, chapter 3, p. 126 (1939).