 The first paragraph in the passage foreshadows which theme of "Sea Legs"?
SEA LEGS By FRANK QUATTROCCHI Illustrated by EMSH Rootless and footloose, a man in space can't help but dream of coming home. Flight Officer Robert Craig surrendered the tube containing his service record tapes and stood waiting while the bored process clerk examined the seal. "No specific destination," supplied the man as he punched a key on a small instrument, "Air-lock ahead and to your right. Craig obeyed the robot voice and began reluctantly to remove his flight jacket. "No, but my father—" "Your parents left Terra during the Second Colonization of Cassiopeia II, didn't they?" He was uncomfortable; Wyandotte seemed to know all about him. Your body is conditioned to a normal state of free fall, or at best to a state of acceleration." Once on Gerymeade...." It helps suppress certain physiological reactions to an entirely new set of conditions. "Do you know what sailors of ancient times meant by 'sea legs?'" asked Wyandotte. "Men on a rolling ocean acclimated themselves to a rolling horizontal. They had trouble when they went ashore and the horizontal didn't roll any more. A port city was a frightening thing to an old sailor—but let's begin our little job at the beginning. Through the ports of the headquarters base satellite, he scanned the constellations for the scores of worlds he had visited during his eleven years in space.
 People shouldn't count on places to stay the same
 Society tends to neglect those who have served  If you don't like it, you can always leave  The grass is always greener on the other side  People shouldn't count on places to stay the same