Betwixt a False Reason and None at All ______Pyrrhonian Lessons on Common Sense and Natural Commitments
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View metadata, citation and similar papers at core.ac.uk brought to COREyou by provided by Sydney eScholarship Betwixt a false reason and none at all __________________________________________ Pyrrhonian lessons on common sense and natural commitments Shane G. Waugh Doctor of Philosophy Thesis The University of Sydney 2008 Page 1 Acknowledgements 4 Abstract 5 Preface 7 Hume’s insight 7 Preliminary definitions 8 Why we ought to care about commonsensical scepticism? 12 Common Sense Naturalism and dialogue with scepticism 15 Reading Sextus: the apraxia challenge and debate over dogmata 17 Pyrrhonism and common sense: against Broughton 27 i) Sextus’ perception of his reader 28 ii) Sextus’ perception of his own project regarding common sense 34 a) Sextus’ explicit statements on common sense 34 b) Sextus’ account of inquiry 38 iii) The commonsensical response to philosophical theory 42 The Pyrrhonian project 47 Outline of the chapters 50 Chapter 1. Common Sense Naturalism 53 Outline 53 An observation and a distinction 54 Naturalism in CSN 63 i) The nature of naturalism 63 ii) Interlude: an objection concerning reflection 66 Arguments for the naturalism of CSN 68 i) Argument 1: Hume and Reid (and Sextus) on natural justification and default entitlement 70 ii) Argument 2: Wittgenstein and Strawson on transcendental arguments 82 Naturalism and commonsensical commitment in CSN: two views 86 i) Hume and Sextus: common sense as scientific nature 87 ii) Strawson: nature as the presupposition of reason 90 iii) Reid: tensions over nature and common sense 92 a) Outline of the basic points of Reid’s view 92 b) Reid’s primary ‘foundationalist’ view 94 c) Reid’s secondary ‘proto-transcendentalist’ view 97 Nature and common sense: convergence, divergence and debate 103 Summary of CSN and its problems 105 Chapter 2. Common sense and radical Pyrrhonian scepticism 109 Outline 109 An outline of Pyrrhonism 112 i) Problematic inquiry 112 ii) Pyrrhonism and radical but non-general scepticism 116 iii) Pyrrhonism and everyday practice 124 The precariousness of problematic and radical inquiries 126 i) Inquiry and levels of scrutiny 126 Page 2 ii) Engaging in problematic inquiry 131 iii) Unserious scepticism and problematic inquiry 133 iv) Eliminable defeators and scepticism 137 v) Interlude: an objection from Williams 141 Pyrrhonian scepticism and reflection 144 i) Reflection and levels of scrutiny 144 ii) Another objection from Williams, and a partial response 148 iii) Levels of scrutiny and norms of inquiry 151 iv) Further norms: the judgement of experts 155 v) Further norms: memory and scepticism 158 Implications of Pyrrhonism thus understood 159 i) The force of Pyrrhonism and a challenge for reason 159 ii) Irreducible instability 161 iii) Conclusion: the challenge of Pyrrhonism 163 Chapter 3. Hume’s Title Principle and perspectivist scepticism 165 Outline 165 Hume’s ‘Title Principle’ and natural justification 167 i) The Title Principle 167 ii) Propensity to believe in accord with our telos 173 iii) Interlude: a Pyrrhonian assessment of out epistemic situation 180 iv) Hume’s possible confusion: Psychology and Reason 181 Scepticism and epistemic merit 182 Unstable beliefs, common sense and mood 185 Mood and perspectivism 190 i) Clarifying mood 190 ii) Mood and common sense 193 iii) Another brief comment on Williams’ objection to Pyrrhonism 195 Common sense, norms and natural commitment 196 i) Common sense and mood 196 ii) Towards an account of common sense 198 iii) Advantages of taking the content of common sense to be norms 204 iv) ‘Fictional’ grounds 207 v) Mood and perspectivism 209 vi) Mood and rational unity 212 Conclusion: the inevitability of Pyrrhonian scepticism 214 i) Natural commitments 214 ii) A Pyrrhonian response to the Pyrrhonian dilemma 215 iii) Endemic Pyrrhonian scepticism 216 References 219 Page 3 ACKNOWLEDGEMENTS Thanks and praise must first go to God, as in all things, for without His help and guidance nothing would be possible. Thanks must also go to my wife Eleni. Only those who have written a thesis and know me could understand the burdens that come along with being married to an academic. Without her encouragement and support I would never have finished. I must also thank my Supervisor, David Macarthur, for not letting me get away with bad philosophy. I have learnt much from him about how philosophy ought to be done and his unfailingly encouraging, if critical, comments were crucial to me producing anything of value. I must also thank my parents for their continual and unhesitating support for the project, my sister for her many hours of minding the children so that I could write something and my brother for his many insightful suggestions. Finally, thanks go to those friends who have given me their kind understanding and patience by not asking me how the thesis was going. Page 4 ABSTRACT Betwixt a false reason and none at all This dissertation argues that if we are to respect the common sense perspective then Pyrrhonian scepticism can be neither avoided nor defeated. While Pyrrhonian scepticism can be diagnosed it cannot be cured, at least, so long as we take a non- revisionary attitude towards common sense. The fundamental reason for this is that Pyrrhonian scepticism derives from the application of norms of inquiry that constitute part of the content of common sense in unusual but not fanciful or impossible situations. Implicit in this dissertation is a distinction between Cartesian and Pyrrhonian scepticisms, and for present purposes these two scepticisms can be distinguished on two criteria. First, unlike Cartesian scepticism, Pyrrhonian scepticism is not global in its doubts. It is not global because it does not attempt to question our entitlement to entire domains of commitment, for instance commitments to anything beyond the content of our perceptions, all at once. Nor does Pyrrhonism attempt to deny the possibility of knowledge. Rather, Pyrrhonian scepticism questions our entitlement to one commitment at a time and is hence iterative rather than global. This leads to the second far more interesting criterion in that unlike its Cartesian cousin Pyrrhonian scepticism claims not to be revisionary of the common sense perspective. In fact Pyrrhonian scepticism represents itself as the common sense perspective under special conditions. On this reading Pyrrhonian scepticism is a form of common sense scepticism. The claim that Pyrrhonian scepticism is commonsensical calls for a clarification of in what exactly the common sense perspective consists, and its relationship to scepticism. Of particular interest in this regard is a position that has been called Common Sense Naturalism (CSN). CSN consists, in part, in three important claims. First, that we are constrained, both logically and psychologically, to take ourselves to have an entitlement to common sense. Second, that because we are thus constrained, we have an entitlement to those commitments that constitute the content of common sense. Third, that the content of common sense is inherently anti-sceptical. These three claims jointly warrant Page 5 the conclusion that appeals to commitments to which we are commonsensically entitled can feature prominently in refutations of scepticism. I argue that CSN is incorrect in that even if we have an entitlement to our common sense commitments we have an equally valid entitlement to Pyrrhonian scepticism, as Pyrrhonian scepticism can be derived from the common sense perspective itself. I also argue that CSN is correct but misleading in suggesting that we are constrained, both logically and psychologically, to take ourselves to have an entitlement to the content of common sense. CSN is correct in that we are always forced to take ourselves to be entitled to some commonsensical commitments but overlooks the fact that the content of these commitments varies, becoming at times amenable to Pyrrhonian scepticism. In fact what we take to be commonsensical is sensitive to our mood at the time. This can be used to explain that feature of the phenomenology of scepticism according to which Pyrrhonian scepticism is a recurrent but not a constant problem. Presenting these arguments requires both that the nature of CSN be clarified (chapter 1), that the relationship between common sense and Pyrrhonian scepticism be established (Chapter 2). Finally, we must also provide an account of the content of common sense be given (Chapter 3) which provides warrant for continued inquisitive activities even after the emergence of Pyrrhonian scepticism from within common sense. Page 6 PREFACE Outlining the Pyrrhonian project Hume’s insight As the title of this dissertation suggests, what is offered here are several lessons that can be drawn from the tradition of Pyrrhonian scepticism on the topics of common sense and our natural commitments. In one sense these lessons could be taken separately, as each deals with a different aspect of the nature of and relationships between common sense and natural commitment. However, there is also a broader strategy at work directed towards an overall point. This overall conclusion is that respecting common sense presents us with a dilemma, specifically, a dilemma regarding our entitlement to that which we take to be commonsensical. In fact respecting common sense eventually leads us to that some conclusion Hume found himself drawing when he wrote in the Treatise of Human Nature that “[w]e have therefore no choice left, but betwixt a false reason and none at all”. The guiding principle of this dissertation is that Hume was on to something. The primary claim of this dissertation is that taking ourselves to have an entitlement to certain common sense ideas and an entitlement to respect certain common sense norms can lead us, seemingly inevitably, to the denial that we have any such entitlement. This leads to the secondary claim that the anti-sceptical adherent of common sense faces a dilemma. This dilemma runs as follows. Either we have an entitlement to common sense or we do not.