In 2004, his novella "There" aroused extensive discussion among China literary circles, universities and readers, and was hailed as the "most powerful novel" in 2004-2005, which became a very important phenomenon after pure literature reflection and discussion in recent years. After the publication of his masterpiece "Questioning the Boundless" by People's Literature Publishing House, it once again attracted the attention of the literary world, and the Peking University Left Bank Cultural Network specially set up a special discussion for this purpose. The Chinese Writers Association, in cooperation with the Shenzhen Writers Association and several theoretical journals, held a seminar on the works of Asking the Boundless in Beijing.

Cao Zhenglu's novels always criticize reality sharply like daggers. The novella The Truth is like a dagger, which pierces the flashy balloon and exposes the social ills. Laid-off workers came to Xi to grow a Zhang Damin's mouth, but he didn't use it to play the poor, but used it to wrangle. So his life is not gentle and bitter, but bloody and tragic. Lacey and the principal raised the threshold for the retention fee of 200 yuan's student status. Then, Xiao Min, the second-grade daughter, was punished by the class teacher and dislocated her cervical vertebra. With the encouragement and help of the debaters in the teahouse, Lacey began to ask the education authorities, the media and the courts to intervene in the investigation of the incident. As a result, her daughter received corresponding compensation. However, after the compensation, the daughter began to be constantly threatened and intimidated by the children, isolated and rejected. Finally, my daughter played truant and hid in the closet with a screwdriver in her hand. Life has turned sharply in the unexpected direction of Laixi's family, and even the teahouse where Laixi spits out his grievances has been subcontracted by the boss. If language was once the last harbor in Zhang Damin's hard life, Lacey has lost it. He just kept silent and let power, philistinism and strong arrangement. What is even more shocking is that this layman's group includes1children under 0 years old. The novel expresses the heat of criticism in the cold narration and the warmth of paying attention to the vulnerable groups in the cruel truth.