Diplomacy is shown inversely by the remark of the professor to the lady in this story.
At a reception the woman chatted for some time with the distinguished man of learning, and displayed such intelligence that one of the listeners complimented her.
"Oh, really," she said with a smile, "I've just been concealing my ignorance."
The professor spoke gallantly.
"Not at all, not at all, my dear madam! Quite the contrary, I do assure you."