Combining Philosophers

Ideas for Lynch,MP/Glasgow,JM, Aristotle and Jonathan Kvanvig

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4 ideas

13. Knowledge Criteria / A. Justification Problems / 1. Justification / b. Need for justification
To know something we need understanding, which is grasp of the primary cause [Aristotle]
     Full Idea: The point of our investigation is to acquire knowledge, and a prerequisite for knowing [eidenai] anything is understanding why it is as it is - in other words, grasping its primary cause.
     From: Aristotle (Physics [c.337 BCE], 194b18)
     A reaction: He then proceeds to identify four types of cause (Idea 8332). I can't think of a better account of knowledge. If we want to know that cigarettes cause cancer, we must get beyond the statistical correlation, and grasp the physical mechanisms.
13. Knowledge Criteria / A. Justification Problems / 1. Justification / c. Defeasibility
The 'defeasibility' approach says true justified belief is knowledge if no undermining facts could be known [Kvanvig]
     Full Idea: The 'defeasibility' approach says that having knowledge requires, in addition to justified true belief, there being no true information which, if learned, would result in the person in question no longer being justified in believing the claim.
     From: Jonathan Kvanvig (Truth is not the Primary Epistemic Goal [2005], 'Epistemic')
     A reaction: I take this to be an externalist view, since it depends on information of which the cognizer may be unaware. A defeater may yet have an undiscovered counter-defeater. The only real defeater is the falsehood of the proposition.
13. Knowledge Criteria / A. Justification Problems / 2. Justification Challenges / a. Agrippa's trilemma
Sceptics say justification is an infinite regress, or it stops at the unknowable [Aristotle]
     Full Idea: Sceptics say that there is either an infinite regress of ideas based on one another, or things come to a stop at primitives which are unknowable (because they can't be demonstrated).
     From: Aristotle (Posterior Analytics [c.327 BCE], 72b09)
     A reaction: This is one strand of what eventually becomes the classic Agrippa's Trilemma (Idea 8850). For Aristotle's view on this one, see Idea 562.
13. Knowledge Criteria / A. Justification Problems / 3. Internal or External / a. Pro-internalism
'Access' internalism says responsibility needs access; weaker 'mentalism' needs mental justification [Kvanvig]
     Full Idea: Strong 'access' internalism says the justification must be accessible to the person holding the belief (for cognitive duty, or blame), and weaker 'mentalist' internalism just says the justification must supervene on mental features of the individual.
     From: Jonathan Kvanvig (Epistemic Justification [2011], III)
     A reaction: [compressed] I think I'm a strong access internalist. I doubt whether there is a correct answer to any of this, but my conception of someone knowing something involves being able to invoke their reasons for it. Even if they forget the source.