Luther's thought is revolutionary to the extent that it is a theology of the cross, the negation of every affirmation: as long as the cross is at the center, the system building tendency of reason is held in check, and system building does not degenerate into System.
Pemikiran Luther dipandang revolusioner karena merupakan suatu teologi salib, negasi dari setiap afirmasi: selama salib berada di tengah, kenderungan pembangunan sistem daya pikir berada dalam pengawasan, dan pembangunan sistem tidak mengalami degenerasi menjadi Sistem.