Yang Zhi in the Water Margins was a complicated character with the following characteristics: 1. Strong self-esteem: Yang Zhi thinks he is a capable person, so he has high confidence in his own ability and does not like others to deny his value. 2. Ambitious: Yang Zhi thirsted for more power and wealth. He often pursued higher status and better treatment. He did not hesitate to take some risks and illegal actions to achieve his goals.