"Il n'y a pas de créature sur terre aussi terrifiante qu'un homme vraiment juste."
— George R.R. Martin
Simplified Meaning:
A person who is completely fair and always does the right thing can be very intimidating to others because they won't bend the rules or show favoritism. Think about a referee in a sports game who always calls out fouls, no matter who makes them. Even if everyone wants to win secretly by cheating a little, this referee will keep everyone honest and playing fairly. People who usually get their way by bending rules might be scared of someone who is truly just because they know they can't get away with anything wrong. This kind of honesty and fairness can be powerful and even a bit scary to those who aren't used to it. If you live your life by being fair and just, you might face resistance from people who benefit from unfair practices, but you'll also gain a lot of respect and trust from others.