http://en.wikipedia.org/wiki/Charles...ws_on_religion
Charles Darwin had a Non-conformist background, but attended a Church of England school. He studied Anglican theology with the aim of becoming a clergyman, before joining the Voyage of the Beagle. On return, he developed his theory of natural selection in full awareness that it conflicted with the teleological argument. Darwin deliberated about the Christian meaning of mortality and came to think that the religious instinct had evolved with society. With the death of his daughter Annie, Darwin lost all faith in a beneficent God and saw Christianity as futile. He continued to give support to the local church and help with parish work, but on Sundays would go for a walk while his family attended church.

In his later life, Darwin was frequently asked about his religious views. He went as far as saying that he did "not believe in the Bible as a divine revelation", but was always insistent that he was agnostic and had "never been an atheist".