 How does Giles change with the knowledge of his aging?
Giles made the expected comments, smiled the proper smiles and greeted his staff by the right names, but it was purely automatic. But with the Procyon shuttle arriving yesterday, there was no telling what might turn up. For eighty years now, they’d been sending out the little ships that vanished at greater than the speed of light, equipped with every conceivable device to make them return automatically after taking pictures of wherever they arrived. GILES SNORTED and turned to the third frame, which showed a group picture of the family in some sort of vehicle, against the background of an alien but attractive world. The discovery that men could live practically forever had put an end to most family ties; sentiment wore thin in half a century—which wasn’t much time now, though it had once seemed long enough. Earth was becoming a backwater world; no real progress had been made in two centuries; the young men were sent out as soon as their first fifty years of education were finished, and the older men were too conservative for really new thinking. Pre-setting a course may take centuries, if we can ever master it. Giles turned from the blank screen to stare out of the windows, while his hand came up to twist at the lock of hair over his forehead. Like an automaton, he bent forward, his other hand groping for the mirror that should be in one of the drawers. Dubbins was at his side almost at once, with a hand under his arm to guide him toward his suite. GILES FOUND himself lying on his couch, partially undressed, with the pillows just right and a long drink in his hand. He left a year ago to visit a son in the Centauri system. Vincenti had been an oddly morose man the last few times he’d seen him, but that could hardly explain his taking a twenty-year shuttle trip for such a slim reason. “Dr. Cobb wants you to come to his office at once, sir,” he said, dropping to his knee to help Giles with his shoes. Now he’d taken to walking, as so many others had, for even with modern safety measures so strict, there was always a small chance of some accident and nobody had any desire to spend the long future as a cripple. COBB APPEARED himself, before the nurse could take over, and led Giles into a room with an old-fashioned desk and chairs that almost concealed the cabinets of equipment beyond.
 He feels a new fondness for his son and family.
 He resigns to his fate, because he doesn’t know what else to do.  He doesn’t. He goes right back to doing what he’d been doing out of habit.  He feels a new fondness for his son and family.  He shows a much greater appreciation for every aspect of his life.