Discourse on Colonialism is an essay by Aimé Césaire, a poet and politician from Martinique who helped found the négritude movement in Francophone literature. Césaire first published the essay in 1950 in Paris with Éditions Réclame, a small publisher associated with the French Communist Party.
Five years later, he then edited and republished it with the anticolonial publisher Présence africaine (Paris and Dakar). It serves as a foundational text of postcolonial literature that discusses what Césaire described as the appalling affair of the European civilizing mission. Rather than elevating the non-Western world, the colonizers de-civilize the colonized.
https://archive.org/details/discourseoncolon0000unse/page/14/mode/2up?q=terrific