The consideration of discovery furnish one of the reasons for avoiding any classification of forms on the basis of meaning. Similarities in meaning may or may not serve as useful signposts in the course of investigation, and some test of social situation may be unavoidable in determining morphemes, but the methods presented here could not make use of any classes of, say, morphemes which are not differentiated from other morphemes by any common distinction except meaning.
- Harris (1951), a pag.372