A gentleman who is righteous is like-minded, a good friend and a righteous friend.

A gentleman can make friends with a villain, but he should have a deep understanding of the villain's character and essence, always beware of the villain, and have enough power to make the villain dare not hurt you.

If you are just an ordinary gentleman, don't make friends with villains. The reason why a villain is a villain is because there is no principle and ordinary people can't control it.