Christian theology, the author asserts, is in part quite acceptable and in part totally unacceptable to the modern mind: such of its doctrines and beliefs as have the genuine authority of the historic Jesus Christ are unassailable and eternal, but those which are based upon the early Christians' interpretation of our Lord's nature and mission are largely untenable. Much of the generally accepted Christian doctrine, the author continues, is derived from pagan sources and not from Jesus Christ at all, a great deal of ecclesiastical Christianity being, indeed, so definitely paganism redressed that one might almost speak of it as the last stronghold of the old heathen gods.