Not only that, but the subtle insanity of Ahab respecting Moby Dick was noways more significantly manifested than in his superlative sense and shrewdness in foreseeing that, for the present, the hunt should in some way be stripped of that strange imaginative impiousness which naturally invested it; that the full terror of the voyage must be kept withdrawn into the obscure background (for few men’s courage is proof against protracted meditation unrelieved by action); that when they stood their long night watches, his officers and men must have some nearer things to think of than Moby Dick.