When a person's judgement becomes blurry, they live without discerning good and evil properly.
In order to make your judgement clear, you must learn about good and evil.
A person's judgement is blurry because he/she 'does not know.'
Whether it be a person or an issue, if you know, you will be able to judge quickly.
Your judgement will be correct depending on how much you know.
It is to know and understand correctly, whether it be an issue or a person.