One of the saddest words in Gu Long's novel came from the third chapter of the Legend of Lu Xiaofeng: " He can't say what he thinks in his heart. He could only silently hide his longing in his heart like a deeply buried bird that would never fly back." This sentence expressed the protagonist's deep longing for another person and unspeakable sadness, making people feel the deep helplessness and loneliness in love. There were many sad sentences in Gu Long's novels, such as "White Jade Tiger":"His figure gradually disappeared, his voice gradually weakened, only the sadness in his heart remained the same." In "The Peerless Twin Prides","Since ancient times, who has not died?" And the many laments of fate in the Legend of Lu Xiaofeng made people feel the pain and helplessness of the characters in the novel.