The anti-slavery cause had come to break stronger fetters than those that held the slave. The idea of equal rights was in the air. The wail of the slave, his clanking fetters, his utter need, appealed to everybody. Women heard. Angelina and Sara Grimki and Abby Kelly went out to speak for the slaves. Such a thing had never been heard of. An earthquake shock could hardly have startled the community more. Some of the abolitionists forgot the slave in their efforts to silence the women. The Anti-Slavery Society rent itself in twain over the subject. The Church was moved to its very foundation in opposition.

The Progress of Fifty Years (1893)