What are the famous articles in Liu Zongyuan's travels?

His travels are particularly well written, the most famous of which is Eight Chapters of Yongzhou. He not only described the beautiful natural scenery with beautiful and fluent words, but also pinned his experience and grief and indignation on the landscape, which became a masterpiece of landscape prose in past dynasties. He wrote a lot of essays and poems in his life and made outstanding contributions to the ancient prose movement. Some of his papers promote simple dialectics. In the history of China literature and philosophy, Liu Zongyuan and his works occupy an important position.