Above all things Rubens liked to paint big pictures, on very large surfaces, as did Michael Angelo. "The large size of picture gives us painters more courage to present our ideas with the utmost freedom and semblance of reality. ... I confess myself to be, by a natural instinct, better fitted to execute works of the largest size." He wrote this to the English diplomat Trumbull in 1621. In the midst of Rubens's greatest success as a painter came his diplomatic services. It was desirable that Spain and England should be friends, and Rubens always moving about because of his work, and being so very clever, the Spanish powers thought him a good one to negotiate with England. While on a professional visit to Paris, the English Duke of Buckingham and the artist met, and this seemed to open a way for business. The Infanta consented to have Rubens undertake this delicate piece of statesmanship, but Philip of Spain did not like the idea of an artist--a wandering fellow, as an artist was then thought to be--entering into such a dignified affair. The real negotiator on the English side, was Gerbier, by birth also a Fleming, and strange to tell, he too had been an artist. The English engaged him to look after their interests in the affair, and as soon as Philip learned that their diplomat was also an artist, his prejudices against Rubens as a statesman, disappeared. So it was decided that the two Flemings, artists and diplomats, should meet in Holland to discuss matters. About that time Sir Dudley Carleton wrote to Lord Conway: "Rubens is come hither to Holland, where he now is, and Gerbier in his company, walking from town to town, upon their pretence of taking pictures, which may serve him for a few days if he dispatch and be gone; but yf he entertayne tyme here long, he will infallibly be layd hold of, or sent with disgrace out of the country ... this I have made known to Rubens lest he should meet with a skorne what may in some sort reflect upon others." The two clever men got through with their talk, nothing unfortunate happened, and Rubens got off to Spain where he laid the result of his talk with Gerbier before the Spanish powers. He was given a studio in Philip's palace, where he carried on his art and his diplomacy. The king became delighted with him as a man and an artist, and as well as attending to state business, he did some wonderful painting while in Madrid. He was there nine months or more, and then started off for England to tell Charles I. of Philip III.'s wishes. But upon his arrival he learned that a peace had just been concluded between France and England, and all was excitement. He was received in England as a great artist; every honour was showered upon him, and when he made Philip's request to Charles, that he should not act in a manner hostile to Spain, Charles agreed, and kept that agreement though France and Venice urged him to break it.