James' older brother William vacillated between art and science but finally settled on the latter, though many years would pass before he became the philosopher and psychologist of enduring fame. James offers a vivid portrait of his sometimes whimsical father, who insisted that his children "be something" instead of going in for "mere doing." The final chapter of the book covers the ill health and death (at 25) of James' spirited and appealing cousin, Minny Temple. James quotes extensively from her touching letters and says that, for himself and William, her death was "the end of our youth."