"Conversation! Supple sentences, with first and second meanings and overtones beyond, outrageous challenges with cleverly planned slip-points, rebuttals of elegant brevity; deceptions and guiles, patient explanations of the obvious, fleeting allusions to the unthinkable. As a preliminary, the conversationalist must gauge the mood, the intelligence and the verbal facility of the company. To this end, a few words of pedantic exposition often prove invaluable."