Biological classifications have two major objectives: to serve as a basis of biological generalizations in all sort of comparative studies and to serve as a key to an information storage system... Is the classification that is soundest as a basis of generalizations also most convenient for information retrieval? This, indeed, seems to have been true in most cases I have encountered.

Mayr (1981) as cited in: C. Gnoli (2011) "Ontological foundations in knowledge organization: the theory of integrative levels applied in citation order". Scire actas. 17-1