What does it mean that the years are quiet and beautiful, and the present world is peaceful?

This sentence was written by the traitor Hu Lancheng when he was married to the talented Shanghai girl Zhang Ailing. In 1944, when Hu and Zhang got married, they wrote a marriage letter: "Hu Lancheng and Zhang Ailing signed a lifelong contract and became husband and wife. May the years be peaceful and the present world stable."

"It is a simple, simple and beautiful wish, which means to live a peaceful life