In Simon Kirchin (ed.), Reading Parfit. Routledge (forthcoming)

Douglas W. Portmore
Arizona State University
I argue that rule consequentialism sometimes requires us to act in ways that we lack sufficient reason to act. And this presents a dilemma for Parfit. Either Parfit should concede that we should reject rule consequentialism (and, hence, Triple Theory, which implies it) despite the putatively strong reasons that he believes we have for accepting the view or he should deny that morality has the importance he attributes to it. For if morality is such that we sometimes have decisive reason to act wrongly, then what we should be concerned with, practically speaking, is not with the morality of our actions, but with whether our actions are supported by sufficient reasons. We could, then, for all intents and purposes just ignore morality and focus on what we have sufficient reason to do, all things considered. So if my arguments are cogent, they show that Parfit’s Triple Theory is either false or relatively unimportant in that we can, for all intents and purposes, simply ignore its requirements and just do whatever it is that we have sufficient reason to do, all things considered.
Keywords Derek Parfit  Rule Consequentialism  Practical Reasons
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References found in this work BETA

On What Matters: Two-Volume Set.Derek Parfit - 2011 - Oxford University Press.
Perform Your Best Option.Douglas W. Portmore - 2013 - Journal of Philosophy 110 (8):436-459.

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Rule-Consequentialism's Assumptions.Kevin P. Tobia - 2018 - Utilitas 30 (4):458-471.

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