Now it is worthy of remark that [Orthodox Christianity] is the only working philosophy. Of nearly all the other philosophies it is strictly true that their followers work in spite of them, or do not work at all. No sceptics work sceptically; no fatalists work fatalistically; all without exception work on the principle that it is possible to assume what it is not possible to believe. No materialist who thinks his mind was made up for him, by mud and blood and heredity, has any hesitation in making up his mind. No sceptic who believes that truth is subjective has any hesitation about treating it as objective.