In his collective influence he made innumerable pulses of knowledge and thought vibrate in his generation. Respect for him became an element of men's own self-respect. How of wit or humour, you ask? He was perfectly patient of a playful sally levelled at bad reasoning, or perverse feeling, or questionable act; but for himself, we were content with his swift detection of a sophism or trenchant exposure of a fallacy, performed with a neatness, finish, and celerity that was a very passable substitute for wit.