Darwin worried about the relationship between what he said and the truths of religion, but he could proceed, he could write books about his subject without having to say what the relationship was to the religious claims, and similarly, geologists increasingly could talk about it.
Darwin preocupou-se com a relação entre o que dizia  e as verdades da religião, mas pôde prosseguir, pôde escrever livro sobre o seu tema sem ter que dizer qual era a relação com as afirmações religiosas. Os geólogos puderam falar  sobre isso cada vez mais.