John Middleton Murry notes discontinuity between "Marriage" and the late works, in that while the early Blake focused on a "sheer negative opposition between Energy and Reason", the later Blake emphasised the notions of self-sacrifice and forgiveness as the road to interior wholeness. This renunciation of the sharper dualism of "Marriage of Heaven and Hell" is evidenced in particular by the humanisation of the character of Urizen in the later works. Murry characterises the later Blake as having found "mutual understanding" and "mutual forgiveness".