"The Joyful Wisdom," written in 1882, just before "Zarathustra," is rightly judged to be one of Nietzsche's best books. Here the essentially grave and masculine face of the poet-philosopher is seen to light up and suddenly break into a delightful smile. The warmth and kindness that beam from his features will astonish those hasty psychologists who have never divined that behind the destroyer is th...