“Certain American uses of deconstruction, Derrida has observed, work to ensure ‘an institutional closure’ which serves the dominant political and economic interests of American society. Derrida is clearly out to do more than develop new techniques of reading: deconstruction is for him an ultimately political practice, an attempt to dismantle the logic by which a particular system of thought, and behind that a whole system of political structures and social institutions, maintains its force. He is not seeking, absurdly, to deny the existence of relatively determinate truths, meanings, identities, intentions, historical continuities; he is seeking rather to see such things as the effects of a wider and deeper history of language, of the unconscious, of social institutions and practices.”