You will find that reason, which always ought to direct mankind, seldom does; but that passions and weaknesses commonly usurp itsseat, and rule in its stead.
Lord ChesterfieldYou should not only have attention to everything, but a quickness of attention, so as to observe at once all the people in the room--their motions, their looks and their words--and yet without staring at them and seeming to be an observer.
Lord Chesterfield