The heroic hours of life do not announce their presence by drum and trumpet, challenging us to be true to ourselves by appeals to the martial spirit that keeps the blood at heat. Some little, unassuming, unobtrusive choice presents itself before us slyly and craftily, glib and insinuating, in the modest garb of innocence. . . . Then it is that you will be summoned to show the courage of adventurous youth.