In Particular:

 Retex­tu­alizer is used here to interact with W.E.B. Du Bois's 1949 essay, "The Nature of Intellectual Freedom", which he presented at the Cultural and Scientific Conference for World Peace, which was held in New York City during March 1949.

 The Primary Source

 Du Bois, W.E.B. 1949. "The Nature of Intellectual Freedom." P.78 in Gillmor, Daniel S. (Ed.), Speaking of Peace. [An edited report of the Cultural and Sci­entific Con­ference for World Peace, New York, March 25, 26, and 27, 1949 under the auspices of National Council of Arts, Sci­ences and Pro­fes­sions]. New York: National Council of Arts, Sci­ences and Pro­fes­sions, 1949.

 Source in Anthology: "The Nature of Intellectual Freedom." Pp.267-268 in Herbert Aptheker (Editor), Writings by W.E.B. Du Bois in Non-Peri­od­i­cal Literature Edited by Others, a volume in The Complete Pub­lished Works of W.E.B. Du Bois. Millwood, NY: Kraus-Thomson Organi­za­tion Limited, 1982.

 Alternate Source: The work is accessible online at the Credo repository of the Special Collections and University Archives, W.E.B. Du Bois Library at the University of Massachusetts Amherst.

 Primary Source Notes: Du Bois presented this work on a conference panel entitled "The Writers Debate Tolstoy's Theme" (starting on p.77+). Also note that the Credo database has drafts of this conference presentation (which Du Bois had entitled "Thinking and Writing"), as well as other materials related to the conference. Search Credo for "Cultural and Scientific Conference for World Peace".