Fanon is best known for the classic analysis of colonialism and decolonization, "The Wretched of the Earth". "The Wretched of the Earth" was first published in 1961 by Éditions Maspero, with a preface by Jean-Paul Sartre. In it Fanon analyzes the role of class, race, national culture and violence in the struggle for national liberation. The book includes an article which focuses on the ideas of violence and decolonization. He claims that decolonization is inherently a violent process, because the relationship between the settler and the native is a binary of opposites. In fact, he uses the Biblical metaphor, "The last shall be first, and the first, last," to describe the moment of decolonization. The situation of settler colonialism creates within the native a tension which grows over time and in many ways is fostered by the settler. This tension is initially released among the natives, but eventually it becomes a catalyst for violence against the settler. His work would become an academic and theoretical foundation for many revolutions.