" {Letter to his brother, 1861}

... I remain an utter disbeliever in almost all that you consider the most sacred truths... But whether there be a God and whatever be His nature; whether we have an immortal soul or not, or whatever may be our state after death, I can have no fear of having to suffer for the study of nature and the search for truth, or believe that those will be better off in a future state who have lived in the belief of doctrines inculcated from childhood, and which are to them rather a matter of blind faith than intelligent conviction. "

― , Alfred Russel Wallace: Letters and Reminiscences, Vol. 1