 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. They found it drifting half a light-year out and captured it. 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. This was the first hope they’d found that the century-long trips between stars in the ponderous shuttles might be ended and he should have been filled with excitement at Jordan’s hasty preliminary report. Scientists there had puzzled over it, reset it and sent it back. Giles dropped the report wearily and picked up the personal message that had come on the shuttle. It had been the bitter quarrels over that which had finally broken Giles’ fifth marriage. 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. He had no desire to spend ninety years cooped up with a bunch of callow young emigrants, even in one of the improved Exodus shuttles. 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. Giles forced his attention on the picture again and this time he noticed the vehicle shown. Faint blur lines indicated it had been moving when the picture was taken. 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. “They’ll slow up when their populations fill,” Giles repeated his old answers. “We’re still ahead in medicine and we’ll get the other discoveries eventually, without interrupting the work of making the Earth fit for our longevity. That missile reached Sirius in less than ten days. It took two accidents to get the thing back to us—and with a half-light-year miss that delayed it about twenty years before the Procyon shuttle heard its signal. Pre-setting a course may take centuries, if we can ever master it. NO SANE man would risk a chance for near eternity against such a relatively short wait.
 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.