On many accounts, the residence at Louvain ought to have been one of the most satisfactory of Erasmus' life. He was in the midst of a congenial activity not limited by any prescribed duties, free from great anxiety about money, secure at any moment of some honourable appointment if he chose to accept it, in fairly good health, and with working powers quite undiminished by advancing years. In the year 1518 there can be no question that the name of Erasmus was the most widely known and honoured among European scholars. His New Testament with its display of learning and its revelation of a new principle of criticism, had demonstrated his character as a serious thinker upon the most important questions of religious faith and practice. If we seek to define this principle we shall be unable to fix it by any categories of philosophy or of theological precedent. In the last analysis we are brought back every time to the principle of common sense working upon the accepted dogmatic bases of the existing church system. His freedom of speech had always been kept carefully within the bounds of doctrinal orthodoxy. He could safely defy his critics to point to a single instance of anything that might by any reasonable interpretation be described as heresy. He knew that in his criticism, so far as it had gone, he was supported by the best opinion of the men of enlightenment everywhere, and relying upon this support he could put on the confident tone of a man who feels himself on the winning side. The generation in which Erasmus had grown up to his fiftieth year was eminently one of progress in every form of enlightenment and expansion. He was twenty-five when Columbus discovered America and gave the first impulse to that intoxicating sense of limitless possibility which from time to time has seized upon a generation of men and carried it on to great triumphs--but always also to disappointments more keenly felt than its successes. Along with the discovery of the earth had gone with equal, even with more rapid pace, the discovery of man. The ban which throughout the Middle Ages had lain upon the human spirit as individual, with powers of its own and the right to use them, was rapidly being lifted. The cunning plebeian who had learned how to mix the subtle ingredients of gunpowder and put it into the hands of his fellow-plebeians, had taught the world an argument against the rights of princes, more potent than all the philosophers from Marsiglio of Padua down had been able to furnish. That other plebeian group who had lit upon the marvellously simple device of multiplying copies of writings by means of movable types, had opened up possibilities of education and therefore of achievement, whose end the imagination of man could not compass.