Roger Lass is concerned about the nature of argumentation within
linguistics and the status of its data and theoretical constructs.
Through an examination of standard strategies of explanation in
historical linguistics (particularly of phonological change), in the
light of past approaches to scientific epistemology, Dr Lass
convincingly demonstrates that attempts to model explanations of
linguistic change on those of the physical sciences are failures both in
practice and in principle. Linguists can neither assimilate their
discipline crudely to the natural or the other human sciences nor, at
the other extreme, shelter behind the notion of a private
self-validating paradigm. Although Dr Lass outlines some tentative paths
towards an alternative epistemology, his main concern is that linguists
should confront the philosophical implications of their subject, and he
raises questions which both linguists and philosophers will need to
consider.