To my office all the morning, to get things ready against our sitting, and by and by we sat and did business all the morning, and at noon had Sir W. Pen, who I hate with all my heart for his base treacherous tricks, but yet I think it not policy to declare it yet, and his son William, to my house to dinner, where was also Mr. Creed and my cozen Harry Alcocke. I having some venison given me a day or two ago, and so I had a shoulder roasted, another baked, and the umbles baked in a pie, and all very well done. We were merry as I could be in that company, and the more because I would not seem otherwise to Sir W. Pen, he being within a day or two to go for Ireland. After dinner he and his son went away, and Mr. Creed would, with all his rhetoric, have persuaded me to have gone to a play; and in good earnest I find my nature desirous to have gone, notwithstanding my promise and my business, to which I have lately kept myself so close, but I did refuse it, and I hope shall ever do so, and above all things it is considerable that my mind was never in my life in so good a condition of quiet as it has been since I have followed my business and seen myself to get greater and greater fitness in my employment, and honour every day more than other. So at my office all the afternoon, and then my mathematiques at night with Mr. Cooper, and so to supper and to bed.