I will digress a little to give an account of the Duke's character, whom I knew for some years so particularly, that I can say much upon my own knowledge. He was very brave in his youth, and so much magnified by Monsieur _Turenne_, that, till his marriage lessened him he really clouded the King, and pass'd for the superior genius. He was naturally candid and sincere, and a firm friend, till affairs and his religion wore out all his first principles and inclinations. He had a great desire to understand affairs: And in order to that he kept a constant journal of all that pass'd, of which he shewed me a great deal. The Duke of _Buckingham_ gave me once a short but severe character of the two brothers. It was the more severe, because it was-true: The King (he said) could see things if he would, and the Duke would see things if he could. He had no true judgment, and was soon determined by those whom he trusted: But he was obstinate against all other advices. He was bred with high notions of the Kingly authority, and laid it down for a maxim, that all who opposed the King were rebels in their hearts. He was perpetually in one amour or other, without being very nice in his choice: Upon which the King said once, he believed his brother had his mistresses given him by his Priests for penance. He gave me this account of his changing his religion: When he escaped out of the hands of the Earl of _Northumberland_, who had the charge of his education trusted to him by the Parliament, and had used him with great respect, all due care was taken, as soon as he got beyond sea, to form him to a strict adherence to the Church of _England_: Among other things much was said of the authority of the Church, and of the tradition from the Apostles in support of Episcopacy: So that, when he came to observe that there was more reason to submit to the Catholick Church than to one particular Church, and that other traditions might be taken on her word, as well as Episcopacy was received among us, he thought the step was not great, but that it was very reasonable to go over to the Church of _Rome_: And Doctor _Steward_ having taught him to believe a real but unconceivable presence of _Christ_ in the Sacrament, he thought this went more than half way to transubstantiation. He said, that a Nun's advice to him to pray every day, that, if he was not in the right way, God would set him right, did make a great impression on him. But he never told me when or where he was reconciled. He suffered me to say a great deal to him on all these heads. I shewed the difference between submission and obedience in matters of order and indifferent things, and an implicite submission from the belief of infallibility. I also shewed him the difference between a speculation of a mode of _Christ's_ presence, when it rested in an opinion, and an adoration founded on it: Tho' the opinion of such a presence was wrong, there was no great harm in that alone: But the adoration of an undue object