This thesis is concerned with the establishment of an underlying philosophy for Robert Browning's many themes. It asserts that a notion found in II Corinthians 3:6, "the letter killeth, but the spirit giveth life," is basic to ideas such as Browning's belief in the superiority of life over art, of the wisdom of the heart over the intellect, and of honest skepticism over unexamined belief. The sources used to establish this premise are mainly the poems themselves, grouped in categories by subject matter of art, love, and religion. Some of his correspondence is also examined to ascertain how relevant the philosophy was to his own life. The conclusion is that the concept is, indeed, pervasive throughout Browning's poetry and extremely important to the man himself.