The whole force of conversation depends on how much you can take for granted. Vulgar chess-players have to play their game out; nothing short of the brutality of an actual checkmate satisfies their dull apprehensions. But look at two masters of that noble game! White stands well enough, so far as you can see; but Red says, Mate in six moves;—White looks,—nods;—the game is over. Just so in talking with first-rate men; especially when they are good-natured and expansive, as they are apt to be at table.

— Oliver Wendell Holmes, Sr., The Autocrat of the Breakfast Table (1858).