William Carey was in everything a man of action as well as a man of letters. He learned by doing, having been a teacher and founding a college before actually possessing a degree or education from one.
He began his mission, churches, and school in a portion of India protected by the King of Denmark, and he worked to train local Bengali converts into ministers following a long catholic tradition of using indigenous converts as clerics going back to Sts. Augustine of Canterbury and Gregory the Great. The man even helped found a newspaper as a voice for Indian Christians in society. Carey was not without flaws, with most admitting he placed his work above his family duties, but such was the spirit of the age in general. (His son died, and his wife had a mental breakdown.)
Despite his failings, William evangelized a wide range of people from vastly different cultures, gaining Portuegese to Bengali proselytes, even converting Adoniram Judson –the American Missionary- to his credobaptist views. The man translated the bible into Bengali, and preached and taught until his death in 1834. 
A cobbler without any formal education, Carey had made it far, doing and expecting great things from the Lord. To this day, in Oxford University’s Baptist hall, the couch on which he died is preserved, and the Anglican Communion of his birth and first baptism commemorates the Dissenter as a saint on the date of his death, in honor of his travels: from England to India to the Divine Presence.