A traveler who travels thousands of miles alone should not be afraid of the rain on the road ahead. This sentence means: A traveler who travels alone and has traveled through thousands of mountains and rivers will not be afraid of the wind and rain on the road ahead. This sentence comes from "Preface to Prince Teng's Pavilion" written by Wang Bo of the Tang Dynasty. This sentence expresses encouragement and praise for those who bravely pursue their careers and ideals. It also conveys a spirit of independence, tenacity and courage. Wang Bo, courtesy name Zi'an, was born in Longmen, Jiangzhou. He is as famous as Yang Jiong, Lu Zhaolin, and King Luo Bin. He is known as the Four Heroes of the Early Tang Dynasty. Among them, Wang Bo is the first of the Four Heroes of the Early Tang Dynasty. Wang Bo is good at five rhymes and five unique poems in poetry genre. His representative works include "Send to Du Shaofu" "Ren Shuzhou" and so on; the main literary achievement is parallel prose, which is the best in terms of quantity and quality. Representative works include "Preface to Prince Teng's Pavilion" and so on.