By their obstinate refusal to regard themselves as a party summoned, the Romanists from the outset, made it impossible for the Emperor to maintain the role of an impartial judge, which, probably, he had never really intended to be. At any rate, though earnestly desirous of religious peace, his actions throughout the Diet do not reveal a single serious effort at redeeming his promise and putting his beautiful words into practise. Being bound to the Pope and the papal party both religiously and politically, Charles did not require of the Romanists a fulfilment of the obligations imposed upon them by his manifesto. All the concessions were to be made by the Lutherans. _Revoca!_--that was the first and only word which Rome had hitherto spoken to Luther. "Revoke and submit yourselves!"--that, in the last analysis, was also the demand of the Emperor at Augsburg with respect to the Lutheran princes, both when he spoke in tones friendly and gentle and when he uttered severe and threatening words. Charles, it is true, desired peace, but a Roman peace, a peace effected by universal blind submission to the Pope; not a peace by mutual understanding and concessions; least of all a peace by political religious tolerance, such as Luther desired, and which in our days is generally regarded as the outstanding feature of modern civilization, notably of Americanism. To force the Lutherans into submission and obedience to the Pope, that was the real object of the Emperor. And the political situation demanded that this be accomplished by peaceable and gentle means--if possible.