Sophia Ripley was an American transcendentalist and feminist. Ripley was also among the few regular women guests of the male-dominated Transcendental Club in the 1830s, and she published an essay on women in The Dial. In July 1841,The Dial published a letter from Ripley called "Letter from Zoar", an account of her experience visiting a communistic society of "Separatists" in Zoar, Ohio in 1837. in the 1840's Sophia was one of the co-founders of the experimental Utopian community called Brook Farms. With the help of her sister-in-law Marianne Ripley, she oversaw Brook Farm's primary school using a progressive child-centered pedagogy that has been compared to the later reforms of John Dewey.