Darwin decided to leave a posthumous memoir for his family, and on Sunday 28 May 1876 he began "Recollections of the Development of my Mind and Character". He found this candid private memoir easy going, covering his childhood, university, life on the "Beagle" expedition and developing work in science. A section headed "Religious Belief" opened just before his marriage, and frankly discussed his long disagreement with Emma. At first he had been unwilling to give up his faith, and had tried to "invent evidence" supporting the Gospels, but just as his clerical career had died a slow "natural death", so too did his belief in "Christianity as a divine revelation". "Inward convictions and feelings" had arisen from natural selection, as had survival instincts, and could not be relied on. He was quick to show Emma's side of the story and pay tribute to "your mother, ... so infinitely my superior in every moral quality ... my wise adviser and cheerful comforter".