“ The practical upshot of his system, which makes will the one sole reality, is intolerable melancholy, taking from man all that constitutes his greatness, his goodness, or his bliss. God — futurity — the soul — mere names, illusions; and the world of men is to him hopelessly bad. The style is brilliant; but the general effect of the work on the average mind is depressing. He published several other works of philosophy, of which the most important is “The Two Sound Problems of Ethics.” ”