Experiment in Criticism  

" Now, there is an urgent need for experiment in criticism of a new kind, which will consist largely in a logical and dialectical study of the terms used…. In literary criticism we are constantly using terms which we cannot define, and defining other things by them. We are constantly using terms which have an intension and an extension which do not quite fit: theoretically they ought to be made to fit; but if they cannot, then some other way must be found of dealing with them so that we may know at every moment what we mean. --T. S. Eliot, "Experiment in Criticism" (1929) "