Ernest Sosa

Life may turn sour and, in extremis, not worth living. On occasion it may be best, moreover, to lay down one's life for a greater cause. None of this is any news, debatable though it may remain, in general or case by case. Now comes the news that life does not matter in the way we had thought. No resurgence of existentialism, nor tidings from some ancient religion or some new cult, the news derives from the most sober and probing philosophical argument (the extraor- dinary Parfit, 1984, Part III), and takes more precisely the following form: Even though life L is optimal (in all dimensions), and even though if it were extended L would continue to be optimal, it does not follow that it is best to extend it, even for the subject whose life L is. What is the argument? Section II will defend a certain view of the nature of persons and personal identity, and Section III will then argue for the Paradox on that basis, and reflect on its philosophical implications and on the options it presents.

What modal relation must a fact bear to a belief in order for this belief to constitute knowledge of that fact? Externalists have proposed various answers, including some that combine externalism with contextualism. We shall find that various forms of externalism share a modal conception of “sensitivity” open to serious objections. Fortunately, the undeniable intuitive attractiveness of this conception can be explained through an easily confused but far preferable notion of “safety.” The denouement of our reflections, finally, will be to show how replacing sensitivity with safety makes it possible to defend plain Moorean common sense against the spurious advantages over it claimed by skeptical, tracking, relevant-alternative, and contextualist accounts.

The theory of knowledge has two sides - epistemology and a bridge to join them: that a belief is justified if and only if obtained by appropriate use of an adequate organon - a principle of theoretical epistemology requiring an organon or manual of practical methodology. Such organon justification is internalist. (How could one ever miss one's source for it?) But it leads briskly to skepticism on pain of regress or circularity - or so it is argued in section 1. In section 2 we consider the epistemology embodied in the Socratic elenchus, which provides a new angle on how methodology relates to epistemology and to science and metaphysics. Thus are we made to face once again the organon account of justification: our internalist bridge principle. That account proves in section 3 to be a special case ,of a more general argumentative account of justification, which in turn agrees with intuitions so powerful as to be enshrined already in our dictionaries. Good rhetoric suggests therefore that 'justification' and its cognates be yielded to the argumentative account; in which case justification must likely fall from its status as principal concept of epistemology. Justification is hence unlikely to be all that is required in general for knowledge, nor is it likely to be what is always required in any premises of use to justify anything. That way, apparently, lies regress or circularity. Better to demote justification to the status of one way for a belief to be appropriate or apt for knowledge, while allowing other ways not dependent on already attained justification: perception, perhaps, or introspection, or memory.

[ES] La creencia es considerada como una especie de expresión, que alcanza un nivel de éxito si es verdadera, un segundo nivel si es competente, y un tercero si es verdadera por ser competente. El conocimiento a un nivel es una creencia apta. La normatividad epistémica que constituye tal conocimiento es, de esta manera, una especie de normatividad de la expresión. Un problema surge para esta explicación del hecho de que la suspensión de la creencia parece caer bajo la misma especie de normatividad epistémica que la creencia misma; aunque suspender es, sin embargo, precisamente no actuar, en todo caso no teniendo como objetivo la verdad. El presente trabajo examina este problema, y propone una solución que distingue varios niveles de normatividad de expresión, incluyendo un primer orden donde la competencia de expresión está en juego, y un segundo orden en que el ejecutante tiene que evaluar el riesgo concomitante con la realización de una expresión de primer orden. Esto introduce un nivel de conocimiento reflexivo que se eleva encima del nivel animal. [EN] Belief is considered a kind of performance, which attains one level of success if it is true, a second level if competent, and a third if true because competent. Knowledge on one level is apt belief. The epistemic normativity constitutive of such knowledge is thus a kind of performance normativity. A problem is posed for this account by the fact that suspension of belief seems to fall under the same sort of epistemic normativity as does belief itself, yet to suspend is of course precisely not to perform, certainly not with the aim of truth. The paper takes up this problem, and proposes a solution that distinguishes levels of performance normativity, including a first order where execution competence is in play, and a second order where the performer must assess the risks attendant on issuing a first-order performance. This imports a level of reflective knowledge that ascends above the animal level.

I give an exposition and critical discussion of Sellars’s Myth of the Given, and especially of its epistemic side. In later writings Sellars takes a pragmatist turn in his epistemology. This is explored and compared with his earlier critique of givenist mythology. In response to Michael Williams, it is argued that these issues are importantly independent of philosophy of language or mind, and that my own take on them does not commit me to any absurd radical foundationalism on language or mind. My own take is in line with Descartes’ two-level epistemology of cognitio and scientia, a bifurcation that protects him from vicious circularity, and is adaptable for an epistemology naturalized, whether in the way of Quine, or Moore, or Davidson.