"No one stays good forever"

[A Black Falcon]

Got it, but what do you think of this particular line?

Hmm... well, out of context of how it's used in the movie (is Superman the bad guy, or are both Superman and Batman bad? I don't know)... well, it depends, I guess, on if you consider 'good' to be about actions, or also thoughts. All people have bad thoughts sometimes, it seems to be a part of being human. So in that respect, sure, nobody can stay good forever. However, you are absolutely right that as far as actions go and not only thoughts, people can, and often do, stay good. Indeed, most people are not murderers, and would not want to be one. I have always believed that it is actions that matter the most, not just thoughts, so I agree with you, people can stay good. It is not exactly difficult to not physically harm people for a lifetime, to use the example you mentioned. There are some shades of grey in less direct actions, but still, I would not agree with the degree of moral greyness suggested in your post, no. A lot of modern movies and TV shows like to get far darker than they need to be, it is a somewhat unfortunate trend in storytelling these days...

And on that note, while I have the A Song of Ice and Fire books and will read the rest whenever he manages to finish writing them, I prefer a story with a more hopeful tone and clearer good and evil, over that kind of moral grey morass.

Also, did you read Scrooge McDuck comics back in the day?

Yeah, Uncle Scrooge might have been my favorite one of the Disney comics. Great stuff...