This sentence came from a famous line in the ancient Chinese martial arts novel," The Eight Dragons ". It meant that there would always be stronger people among the strong, and the wicked would be tortured by the wicked. This sentence expressed a philosophy that in this world, everyone has their own strengths and weaknesses, and people will also encounter various difficulties and challenges. These challenges will help people grow and become stronger. At the same time, this sentence also implied that the behavior of the wicked should also be punished to make society more fair and just.