Which of the following quotes illustrates one of the author’s ideas? “[The boy] thought of all the married shepherds he had know
n. They had a difficult time convincing their wives that they had to go off into the distant fields. Love required them to stay with the people they loved.” “No matter what he does, every person on earth plays a central role in the history of the world. And normally he doesn’t know it.” “I’m only interested in the present. If you can always concentrate on the present, you’ll be a happy man. You’ll see that there is life in the desert, that there are stars in the heavens, and that tribesmen fight because they are part of the human race.” “Now, I’m beginning what I could have started ten years ago. But I’m happy at least that I didn’t wait twenty years.”
I think it's that people will work to improve their appearance
Explanation:
At first it's talking about how he spends his money to buy a new shirt, which is for appearance, and then talks about how he cleans his finger nails, which is to look clean (appearance)
Americans are also unlikely to put individual happiness before the institution of marriage — they were second most likely (after the British) to agree that even a childless couple should “stay together even if they don’t get along.”