Final answer:
The quote that best exemplifies the theme of identifying as an outsider resulting in confusion and strained relationships.
Step-by-step explanation:
The quote from the story that best exemplifies the universal theme that identifying as an outsider can result in confusion and strained relationships is:
And yet, being a problem is a strange experience,-peculiar even for one who has never been anything else, save perhaps in babyhood and in Europe.
This quote highlights the protagonist's realization that he is different from others and is shut out from their world by a metaphorical 'vast veil.' This understanding leads to feelings of confusion and strained relationships.