Phonology as Human Behavior
Second, in turning their backs on phonetics, both Troubetskoy and Bloomfield held concepts of abstract structure that for them provided the motivation for phonological research. They disagreed with each other, of course, in their conceptions of what phonological structure was, and others since have disagreed with both, so it is hardly surprising that we find some difficulty in justifying anew, for ourselves, the choice of these particular motivations. But at any rate, the effect of these strongly held views on structure was to reject phonetics, and responsibility to phonetics, as a control on their procedures. The phonetics, of course, was there and did serve as a control, but for a control to be implicit and unacknowledged, rather than explicit, is undoubtedly always an unhappy state of affairs.