What are some very important qualities that cannot be learned by studying?

If people are not afraid of death, they can do many great things. Many times, the key reason why others dare to bully you, defraud you, play with you, humiliate you, and enslave you is that they see that you are a coward.

People must have the ability to risk their lives with the other party in order not to be oppressed, humiliated, enslaved and played with. There is a Li Shengnan in Liang Yusheng's novel. She practices very evil martial arts. She relies on breaking her own meridians and internal organs to stimulate her attack power. This kind of hurting others is at the cost of killing yourself.

Although you can severely injure or kill your opponent, you will also die. There is a ruthless hook in Gu Long's novel. When the acupuncture points on his arm were tapped and he was about to be controlled, he did not hesitate to cut off his arm, leaving the opponent defenseless to death by surprise. In Jin Yong's novels, the Huashan sect has a sword technique in which a long sword passes through one's abdomen and kills the enemy hugging one behind. If you have such courage, your chances of being controlled and enslaved by others will be much less. There must be more people like this in the world so that humans can learn to respect each other.