Scott Stapleford

Stapleford (2007) identified Johann Nicolaus Tetens as the missing link between Reid’s common sense treatment of external world scepticism and Kant’s transcendental Refutation of Idealism. While that account is arguably correct, it failed to recognize the distinction between being justified in believing P and being justified in believing that my belief in P is justified. This paper corrects the oversight and explains its implications. Tetens emerges as a weak externalist regarding knowledge of external objects, situated roughly halfway between Reid’s moderate externalism and Kant’s strong internalism.

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Many deontologists explain the epistemic value of justification in terms of its instrumental role in promoting truth – the original source of value in the epistemic domain. The swamping problem for truth monism appears to make this position indefensible, at least for those monists who maintain the superiority of knowledge to merely true belief. I propose a new solution to the swamping problem that allows monists to maintain the greater epistemic value of knowledge over merely true belief. My trick is to deny the swamping premise itself.

Building on the research of Manfred Kuehn, the author argues that, whatever influence the Scottish Common Sense Philosophy of Thomas Reid may have had on the development of Immanuel Kant’s refutation of idealism, it was filtered through the thinking of Kant’s largely forgotten German contemporary, Johann Nicolaus Tetens. While the importance of Tetens for understanding Kant is examined in connection with only one idea, the aim is to demonstrate that Tetens is a figure worthy of serious historical consideration.

The paper defends the thesis that our epistemic duty is the duty to proportion our beliefs to the evidence we possess. An inclusive view of evidence possessed is put forward on the grounds that it makes sense of our intuitions about when it is right to say that a person ought to believe some proposition P. A second thesis is that we have no epistemic duty to adopt any particular doxastic attitudes. The apparent tension between the two theses is resolved by applying the concept of duty to belief indirectly.

The paper is a limited defence of one of P. F. Strawson's least popular declarations about the nature of Kant's transcendental idealism. An attempt is made to relate Strawson's reading to an interpretative controversy that emerged in the years immediately following the publication of the first edition of the Critique of Pure Reason in 1781. Johann Christian Gottlob Schaumann, an otherwise unremarkable figure, is considered as an early defender of the thoroughly idealistic interpretation in the distinctive form articulated by Strawson.

Chase Wrenn argues that there are no epistemic duties. When it appears that we have an epistemic duty to believe, disbelieve or suspend judgement about some proposition P, we are really under a moral obligation to adopt the attitude towards P that our evidence favours. The argument appeals to theoretical parsimony: our conceptual scheme will be simpler without epistemic duties and we should therefore drop them. I argue that Wrenn’s strategy is flawed. There may well be things that we ought to do on epistemic grounds alone.