Into the details of this literature there is no need to go; it is sufficient to observe its outstanding features. They correspond in the main to the temper of the master mind, Socinus, a man who in the absence of imaginative genius displayed remarkable talent as a reasoner, and a liberal disposition considerably in advance of his times. The later Socinian writings, preserved in eight large volumes issued by the 'Polish Brethren' (Amsterdam, 1666), exhibit in addition the results of much diligent research and scholarship, in which the wide variety of opinion actually held by the Fathers and later Church authorities is proved, and the moral is drawn. In the presence of so much fluctuating teaching upon the abstruser points of the creeds was it not desirable to abandon the pretence of a rounded system complete in every detail? Would it not he better to simplify the faith--in other and familiar words, to reduce the number of 'essentials'? In order to discover these essentials, surely the inquirer must turn to the Bible, the record of that miraculous revelation which was given to deliver man's unassisted reason from the perils of ignorance and doubt. At the same time, man's reason itself was a divine gift, and the Bible should be carefully and rationally studied in order to gather its real message. As the fruit of such study the Socinians not only propounded an Anti-trinitarian doctrine derived from Scripture, but in particular emphasized the arguments against the substitutionary atonement as presented in the popular Augustinian scheme and philosophically expounded in Anselm's _Cur Deus Homo_. Socinus himself must be credited with whatever force belongs to these criticisms on the usual doctrine of the death of Christ, and it may be fairly said that most of the objections advanced in modern works on that subject are practically identical with those of three centuries ago. Now there is good reason for believing that towards the end of the seventeenth century this Socinian literature really attracted much attention in England, and probably with considerable effect. But as a matter of fact no English translation of any part of it was made before John Bidle's propagandist activity in the middle of the century, and we have the explicit testimony of Bidle himself and most of the earlier Unitarians that they were not led into their heresy by foreign books. It was the Bible alone that made them unorthodox. A famous illustration of this is the case of _John Milton_ (1608-74). In 1823 a long-forgotten MS. of his was found in a State office at Westminster, and two years later it was published under the editorship of Dr. Sumner, afterwards Bishop of Winchester. The work is entitled _A Treatise of Christian Doctrine_. It was a late study by the poet, laboriously comparing texts and pondering them with a mind prepared to receive the verdict of Scripture as final, whether in agreement with orthodoxy or not.