The cause of this lies in the nature of the sources of the life of Jesus, and in the character of our knowledge of the contemporary religious world of thought. It is not that the sources are in themselves bad. When we have once made up our minds that we have not the materials for a complete Life of Jesus, but only for a picture of His public ministry, it must be admitted that there are few characters of antiquity about whom we possess so much indubitably historical information, of whom we have so many authentic discourses. The position is much more favourable, for instance, than in the case of Socrates; for he is pictured to us by literary men who exercised their creative ability upon the portrait. Jesus stands much more immediately before us, because He was depicted by simple Christians without literary gift. But at this point there arises a twofold difficulty. There is first the fact that what has just been said applies only to the first three Gospels, while the fourth, as regards its character, historical data, and discourse material, forms a world of its own. It is written from the Greek standpoint, while the first three are written from the Jewish. And even if one could get over this, and regard, as has often been done, the Synoptics and the Fourth Gospel as standing in something of the same relation to one another as Xenophon does to Plato as sources for the life of Socrates, yet the complete irreconcilability of the historical data would compel the critical investigator to decide from the first in favour of one source or the other. Once more it is found true that “No man can serve two masters.” This stringent dilemma was not recognised from the beginning; its emergence is one of the results of the whole course of experiment. The second difficulty regarding the sources is the want of any thread of connexion in the material which they offer us. While the Synoptics are only collections of anecdotes (in the best, historical sense of the word), the Gospel of John—as stands on record in its closing words—only professes to give a selection of the events and discourses. From these materials we can only get a Life of Jesus with yawning gaps. How are these gaps to be filled? At the worst with phrases, at the best with historical imagination. There is really no other means of arriving at the order and inner connexion of the facts of the life of Jesus than the making and testing of hypotheses. If the tradition preserved by the Synoptists really includes all that happened during the time that Jesus was with His disciples, the attempt to discover the connexion must succeed sooner or later. It becomes more and more clear that this presupposition is indispensable to the investigation. If it is merely a fortuitous series of episodes that the Evangelists have handed down to us, we may give up the attempt to arrive at a critical reconstruction of the life of Jesus as hopeless.