It was because he at heart regarded it as "great fun" and was in complete accord with the children that they delighted in him as a playmate. In the same spirit, in January, 1905, he took a squad of nine boys, including three of his own, on what they called a "scramble" through Rock Creek Park, in Washington, which meant traversing the most difficult places in it. The boys had permission to make the trip alone, but they insisted upon his company. "I am really touched," he wrote afterward to the parents of two of the visiting boys, "at the way in which your children as well as my own treat me as a friend and playmate. It has its comic side. They were all bent upon having me take them; they obviously felt that my presence was needed to give zest to the entertainment. I do not think that one of them saw anything incongruous in the President's getting as bedaubed with mud as they got, or in my wiggling and clambering around jutting rocks, through cracks, and up what were really small cliff faces, just like the rest of them; and whenever any one of them beat me at any point, he felt and expressed simple and whole-hearted delight, exactly as if it had been a triumph over a rival of his own age." When the time came that he was no longer the children's chosen playmate, he recognized the fact with a twinge of sadness. Writing in January, 1905, to his daughter Ethel, who was at Sagamore Hill at the time, he said of a party of boys that Quentin had at the White House: "They played hard, and it made me realize how old I had grown and how very busy I had been the last few years to find that they had grown so that I was not needed in the play. Do you recollect how we all of us used to play hide and go seek in the White House, and have obstacle races down the hall when you brought in your friends?" Deep and abiding love of children, of family and home, that was the dominating passion of his life. With that went love for friends and fellow men, and for all living things, birds, animals, trees, flowers, and nature in all its moods and aspects. But love of children and family and home was above all. The children always had an old-fashioned Christmas in the White House. In several letters in these pages, descriptions of these festivals will be found. In closing one of them the eternal child's heart in the man cries out: "I wonder whether there ever can come in life a thrill of greater exaltation and rapture than that which comes to one between the ages of say six and fourteen, when the library door is thrown open and you walk in to see all the gifts, like a materialized fairy land, arrayed on your special table?"