Love is the basic law of life. Love on the human side is an ex pression of man's distinguishing characteristic: his freedom. In fact, Love is the only final structure of freedom (no. 5, this volume). Niebuhr has consistently used the word love in his ethical analyses to mean agape, the immortal Love, forever full, forever ?owing free. It is the out-going, unmeasured love of Christ on the cross. Niebuhr disagrees with Anders Nygren (agape and Eros, Westminster, however, in making the contrast between agape and the doctrines of love (eros) in classical thought too absolute. He notes that Jesus Himself does not regard the contrast between natural human love and the divine agape as absolute. (the Nature and Destiny of Man, II, n. 16, p.