In preparing a critical analysis of the character of Jesus, it is freely admitted that many of the thoughts attributed to the son of Mary are superlatively fine. They will live forever whether the personality of Jesus be rejected as a divinity or not. That these beautiful preachments are ignored here is not due to any desire to belittle admirable sentiments or to disparage right living. The loving side of Jesus has been emphasized again and again and will be borne in mind by the reader when other less admirable traits are criticized. The intent of this criticism is not to destroy idealism but to assist the spirit of true progress. _Christianity Must Go_ The significance of this investigation lies in the changes that would have to be made in religious thought if it should be found that Jesus was not perfect. If Jesus was in error concerning conditions of his own time and exhibited no knowledge of our modern problems, his authority will be lessened. Searchers after the true way of life will not continue to worship a person whose conception of the physical and spiritual world was erroneous. If Jesus made mistakes, he is neither the Son of God nor an infallible man. So long as people feel compelled to worship what has been proved imperfect, or to evade important doctrines of their creeds for fear of losing faith in old traditions, their minds will not be receptive to changes in social conditions that require abandonment of established customs. Christians are imbued with a psychology derived from a completed revelation. The firmer their belief in Jesus, the greater their resistance to new ideas. Catholics are more reluctant to join progressive movements than Modernists and Modernists than Evolutionists. Religious people are apt to be afraid of the new world; they doubt the possibility of eliminating war, poverty and injustice--customs as deeply rooted in the social world as belief in Jesus is in the religious world. If the chief reactionary bulwark of the past is abandoned, there will be greater possibility of accepting new revelations.