To begin with, let’s classify people as evil. Assuming good and evil has 2 categories (a good group and an evil group) as a classification, good and evil can be regarded as a most rough categorization since it has only 2 groups. Because it is rough, it is very easy to classify things under good and evil.
|At first you classify anybody whom you want to look down on as evil.|
|After all, 'good and evil' has only 2 categories, namely, 'good' and 'evil'. It is sooo rough that classifying anyone as evil is very easy.|
The above illustration with devil marks is the one used in ‘Which?’ picture book. 'Which?' shows the process where one classifies all mankind as evil.