A similar sentence is: bullying a white beard is better than bullying a poor teenager. One day, the dragon will wear a phoenix. I don't believe my pants will wear holes.
I would rather look down on an old man without money than a poor young man. Because the future of young people is limitless. As long as young people work hard, they will have a successful career sooner or later, so they don't believe in wearing pants with holes all their lives. Source: The Scholars written by Wu in Qing Dynasty.