Burnet starts by applying modern schemes to Greek history, in particular by applying our recognition of an antithesis between religion and science, an antithesis that does not exist in Christianity, yet developed during the western medieval times by the dogmatical/authoritarian approach of Papacy to Christianity, which resulted to persecutions not only of heretics or supposed heretics, but even of scientists and any form of free thinking. The papal distortion of the meaning of faith is responsible for many of us today having difficulty to understand faith as something different from blind doctrinal belief.