"A few days before the picnic, he had found a photograph of his father twenty-five years younger, standing with a group of friends at college. The photograph had disturbed him, made him aware as he had not been before of the passing of time, the swift flow of the years away from youth. A picture taken of him as he was now would, in twenty-five years, look as strange to his own children as his father’s picture did to him—unbelievably young, a stranger out of a strange, never-returning time."