Ambiguity

Ambiguity: 
Exactly why does Bartleby always "prefer not to"? Why can't he make friends, or communicate? What's at the heart of his
rebellion? Why doesn't he quit and get a different job?
Why does the Boss have sympathy for Bartleby?
What else in the story seems open
to individual readers' interpretation?

Bartleby is very hurt in his mental state he is dead inside, he can't communicate because in a way he has lost hope in himself and humanity.Bartleby wont quit because this job because he doesn't have to talk much with others and this is good for him because he is lost himself. The boss has sympathy for Bartleby because he sees a young man who is conflicting with himself and has issues that even time couldn't mend. The reader sees that even though he is annoying with his preferences and mood there is a deeper meaning and problem behind his sorrow.