Erasmus's need of protesting against warfare had not been satisfied by writing the Julius. In March 1514, no longer at Cambridge, but in London, he wrote a letter to his former patron, the Abbot of Saint Bertin, Anthony of Bergen, in which he enlarges upon the folly of waging war. Would that a Christian peace were concluded between Christian princes! Perhaps the abbot might contribute to that consummation through his influence with the youthful Charles V and especially with his grandfather Maximilian. Erasmus states quite frankly that the war has suddenly changed the spirit of England. He would like to return to his native country if the prince would procure him the means to live there in peace. It is a remarkable fact and of true Erasmian naïveté that he cannot help mixing up his personal interests with his sincere indignation at the atrocities disgracing a man and a Christian. 'The war has suddenly altered the spirit of this island. The cost of living rises every day and generosity decreases. Through lack of wine I nearly perished by gravel, contracted by taking bad stuff. We are confined in this island, more than ever, so that even letters are not carried abroad.'
This was the first of Erasmus's anti-war writings. He expanded it into the adage Dulce bellum inexpertis, which was inserted into the Adagia edition of 1515, published by Froben and afterwards also printed separately. Hereafter we shall follow up this line of Erasmus's ideas as a whole.
Though the summer of 1514 was to bring peace between England and France, Erasmus had now definitely made up his mind to leave England. He sent his trunks to Antwerp, to his friend Peter Gilles and prepared to go to the Netherlands, after a short visit to Mountjoy at the castle of Hammes near Calais. Shortly before his departure from London he had a curious interview with a papal diplomat, working in the cause of peace, Count Canossa, at Ammonius's house on the Thames. Ammonius passed him off on Erasmus as a merchant. After the meal the Italian sounded him as to a possible return to Rome, where he might be the first in place instead of living alone among a barbarous nation. Erasmus replied that he lived in a land that contained the greatest number of excellent scholars, among whom he would be content with the humblest place. This compliment was his farewell to England, which had favoured him so. Some days later, in the first half of July 1514, he was on the other side of the Channel. On three more occasions he paid short visits to England, but he lived there no more.
Plate XIII. JOHANNES FROBEN, 1522-3. Reproduced by gracious permission of H.M. The Queen
Plate XIV. THE PRINTER'S EMBLEM OF JOHANNES FROBEN