Changes

Harvard Professor Ernst Mayr: "It is apparent that Darwin lost his faith in the years 1836-39, much of it clearly prior to the reading of Malthus. In order not to hurt the feelings of his friends and of his wife, Darwin often used deistic language in his publications, but much in his Notebooks indicates that by this time he had become a 'materialist' (more or less = atheist)"<ref>''American Scientist''  May 1977:323</ref>

Harvard Professor Ernst Mayr: "It is apparent that Darwin lost his faith in the years 1836-39, much of it clearly prior to the reading of Malthus. In order not to hurt the feelings of his friends and of his wife, Darwin often used deistic language in his publications, but much in his Notebooks indicates that by this time he had become a 'materialist' (more or less = atheist)" <ref>''American Scientist''  May 1977:323</ref>