The basic rules of classification are — Brian Campbell Vickery

"Citation does not necessarily reflect current demand."

"Facet analysis results in more varied, multidimensional relationships, at least in theory, better reflecting the complexity of subject knowledge"

"[Vickery in his handbook of procedures for making , writes that organizing a field into facets] can be achieved only by a detailed examination of the literature of the field"

"The crux of the retrieval problem is that selecting documents to read grows ever more difficult, and new techniques are continually needed."

"Information retrieval is now an accepted part of the new discipline of information science and technology... I have concentrated on the field with which I am most familiar, the problems of bibliographic description and subject analysis."

"John Desmond Bernal (1901-1971) was undoubtedly the most important of the "Western" scientists who, during the twentieth century, accepted the Marxist view of social development. He did more than "accept" it: he tried to sketch the whole history of science from a Marxist viewpoint; he wrote a number of articles explicitly expounding his view of the relation of Marxism to science; and from his student days he played an active role in Communist politics. He has been criticised: during his lifetime, for too readily accepting official Soviet policy, whether relating to society or to science; since his death, for having been too ready to hope that his vision of the use of science for human ends could be implemented by capitalist societies; and at all times, for an allegedly simplistic faith in science as the salvation of mankind."