 His dormant interest in metaphysics was revivified at Columbia by his colleague F. J. E. Woodbridge, who illustrated how metaphysics might be done in a “descriptive” rather than an extra-physical way (“Biography of John Dewey”, in Schilpp 1939: 36). While many of Dewey’s most important writings on metaphysics were also about experience (discussed above), special attention should be paid to “The Postulate of Immediate Empiricism” (1905, PIE, MW3), “The Subject-Matter of Metaphysical Inquiry” (1915, MW8), and his “Introduction” to Essays in Experimental Logic (1916c, MW10)—all vital steps toward his magnum opus, Experience and  Nature.[15] EN’s final chapters, dealing with art and consummatory experience, are developed in Art as Experience (1934b, LW10), another source of significant metaphysical discussions.