I think my question was rejected so I'll try to ask it differently. Can I, or anyone, ever accurately make a judgment as to whether another person is 'good' or not? Can I call someone a 'bad person'? For example, I assume Hitler is accepted by (mostly) everyone as a bad person, but I can also assume that there were moments in his life where he acted with genuine love and concern (maybe towards his dog). Does this mean that I can call him unequivocally a bad person still?