After his salvation, Watchman Nee immediately sought to know the Lord Jesus in the Word of God and through classic Christian books and the spiritual writings of other believers. He read voraciously and, blessed with a keen mind, was able to remember what he read. In a short time, he himself began to write on matters of the Christian life in magazines, tracts, and books. He translated important Christian works from English into Chinese for others to benefit from, and he began to give spoken messages in his early 20s. He even spoke to audiences in Europe. Through his ministry, the Lord raised up hundreds of believers and churches in China.
Source: Author Spotlight: Who Is Watchman Nee? | Bibles for America