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She became a roving minister, traveling around the Connecticut River valley to preach, sing, pray, and evangelize at camp meetings, in churches, or wherever she could find shelter and an audience. Her message was that God is loving and perfect, and that human beings had nothing to fear from him. She said often that "God is from everlasting to everlasting" and that "Truth burns up error." She believed that God was present everywhere and that all beings lived in him as "fishes in the sea." .
In the winter of 1843 Sojourner Truth moved to the Northampton Industrial Association, another utopian community, where she lived until 1846. There she met important members of the abolitionist movement, including Frederick Douglass and George Benson, brother-in-law of the antislavery leader William Lloyd Garrison. As a result of this experience, abolitionism and women's rights became important to Sojourner Truth and were always expressed in her preaching. She never compromised the importance of these causes, disagreeing with abolitionists such as Douglass, who maintained that equality for women ought to be subordinated to the elimination of slavery.(from source # 3 of bibliography).
The year soon came when Sojourner would start to get a lot of recognition with her speeches and selling her secret autobiography. In 1850 Truth published her autobiography, ghostwritten by Olive Gilbert. She supported herself by selling The Narrative of Sojourner Truth at women's rights meetings for twenty-five cents a copy. Truth's "Ar'n't I a Woman?" speech at the Akron Women's Rights Convention in 1850 has gone down in history as one of the most significant expressions of the combined abolitionist and women's rights movement. When Truth rose to speak she was severely heckled; undaunted, she pointed out that as a female slave she had experienced the profound grief of having her own children sold away and had had to work like a man all her life; she then asked, "And ar'n't I a woman?" She left the stage to chaotic applause.