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Impartiality and Objectivity

Quine famously regretted the "methodological infirmity of ethics as compared with science" (1979, 478), and according to Michele M. Moody-Adams, the negative comparison of moral inquiry to "an idealized model of inquiry and argument in science" is one of the main reasons why the mere existence of moral dispute has been interpreted as evidence for the assumption that “rationally irresolvable moral disagreement is an unavoidable fact of human experience." (Moody-Adams 1997, 9) In this paper, I follow Peter Dear and Lorraine Daston in tracing the history of scientific objectivity, and discover that one of the most important ideals of objectivity in modern natural science has its roots in the Scottish Enlightenment notion of impartiality. I propose that this historic connection gives us reason to think that Adam Smith's model of moral judgement, centred on the idea of an impartial spectator, is a potential source of methodological amelioration.