In this chapter I scrutinize the appearance of the American-born Maysles brothers, Albert (1926–2015) and David Carl (1932–1987), on the historical, conceptual, and symbolic stage of A Philosophical History of Documentary. The chapter looks into the case of the Maysles brothers through the lens of the seldom-discussed phenomenon of sibling collaboration in the arts and, more specifically, in the history of documentary filmmaking. By 1964 the Maysles brothers had already had six films attributed to their brand name, even though their signature films, for which they were about to become cultural celebrities and filmic role models, were yet to appear. Their 1964 definiens of Documentary appears in an in-depth interview with filmmaker James Blue. Blue’s article from 1964 was originally published in Film Comment and titled “Thoughts on Cinéma Vérité and a Discussion with the Maysles Brothers.” While Albert argues that science is his source of reference for assuring truth knowledge, David argues that “there is no such thing as being strictly objective in anything that is at all artistic.” For him, “objectivity is just a personal integrity.” Throughout the chapter I critically comment on these and other views that the two express, each with his special tint and accentuation. Overall, this hermeneutics proposes a novel reading of the Maysles brothers’ early 1960s rejection of objectivism.