What was the saddest sentence in Jin Yong's novel?

The saddest words in Jin Yong's novels vary from person to person, but the following fragments may resonate with readers: Although he was nearly fifty years old, he was strong and looked like a young man. He also held a sharp dagger in his hand and wandered in the Jianghu like an ageless dragon. - Duan Zhengchun and Duan Yu lamented the gap between him and his son when they parted ways in the " Demigods ". A'Zhu is A'Zhu. The four seas and the kingdoms have turned into dust for thousands of years. - In The Deer and the Cauldron, Wei Xiaobao sighed when he named Little Xuanzi. Lovesickness is as deep as the sea, and old things are as far away as the sky. I hope we can live together for a long time. - In The Return of the Condor Heroes, Huang Rong wrote a poem after Yang Guo left to express her longing and reluctance for him. If he were old enough, he would dare to laugh at Huang Chao for being unmanly. The famous quote that Yue Buqun said to Linghu Chong in " Smiling Proud Jianghu " hinted at his complicated feelings for Linghu Chong. The words in these clips expressed the reluctance and longing for the deceased lovers, relatives, and friends. They entrusted the nostalgia for the beautiful past and the expectations for the future. It was moving to read.