Content Warning: This guide section discusses enslavement.

In the preface to Woman in the Nineteenth Century, Margaret Fuller explains that the essay is an expanded version of her earlier article, "The Great Lawsuit: Man versus Men; Woman versus Women," which was published in The Dial in 1843. Due to its popularity and interest, Fuller revised and republished it in this new format.

She discusses the change in the title, explaining that while she preferred the original, which required deeper thought, others found it too complex. Fuller explains that the original title reflects her view that "Man" (representing both men and women) is meant to evolve into a higher state, embodying divine qualities, though societal prejudices and passions often hinder this progress. Fuller emphasizes that both men and women are essential parts of this broader vision, and their development must happen together. She believes the liberation of one is impossible without the other, and the essay seeks to advocate for equal development and freedom for both sexes.

Fuller calls on women to reflect on what true freedom means for them, urging them to recognize the "liberty of law" rather than just seeking superficial privileges (vi). She encourages both men and women to engage sincerely with the ideas in her work, hoping that truth and equality will prevail.