Pure good or pure bad?

I just finished reading all 771 pages of Donna Tartt’s book The Goldfinch, and I’ve been thinking about something Boris said:

“Maybe this is one instance where you can’t boil down to pure ‘good’ or pure ‘bad’ like you always want to do. Like, your two different piles? Bad over there, good over here? Maybe not quite so simple.”

You’re right, Boris. We can’t boil down lots of people or lots of situations into pure good or pure bad. Often, they fall somewhere in that in between, gray category.