Friedrich Wilhelm Joseph Schelling (1775-1854) spent his philosophical career striving to realize the Absolute system, but he did so in full recognition of the fact that the Absolute is not finally a logical system, but a living actuality. Accordingly, for Schelling, "life is the criterion of truth." Though his critics often dismissed his thought as fragmentary and protean, C. S. Peirce, in a letter to William James, remarked that it was precisely Schelling's "freedom from the trammels of system" and willingness to approach philosophical ideas experimentally rather than dogmatically that he...