more on this theme     |     more from this thinker

Single Idea 13314

[filed under theme 13. Knowledge Criteria / D. Scepticism / 1. Scepticism ]

Full Idea

Protagoras declares that it is possible to argue either side of any question with equal force, even the question whether or not one can equally argue either side of any question!

Gist of Idea

Protagoras says arguments on both sides are always equal

Source

report of Jaegwon Kim (Mind in a Physical World [1998]) by Seneca the Younger - Letters from a Stoic 088

Book Ref

Seneca: 'Letters from a Stoic (Selections)', ed/tr. Campbell,Robin [Penguin 1969], p.160

A Reaction

This is perhaps the most famous sceptical argument in the ancient world (though, note, Protagoras is most famous for his relativism rather than his scepticism). It is, of course, wrong. The arguments are sometimes equal, but often they are not.

The 22 ideas from 'Mind in a Physical World'

13314 Protagoras says arguments on both sides are always equal [Kim, by Seneca]
2308 Identity theory was overthrown by multiple realisations and causal anomalies [Kim]
2309 Non-Reductive Physicalism relies on supervenience [Kim]
2310 Supervenience is linked to dependence [Kim]
2311 Maybe strong supervenience implies reduction [Kim]
2313 Emergentism says there is no explanation for a supervenient property [Kim]
2314 Maybe intentionality is reducible, but qualia aren't [Kim]
2315 Mereological supervenience says wholes are fixed by parts [Kim]
2317 Reductionism is good on light, genes, temperature and transparency [Kim, by PG]
2318 Agency, knowledge, reason, memory, psychology all need mental causes [Kim, by PG]
2319 Metaphysics is the clarification of the ontological relationships between different areas of thought [Kim]
2320 Properties can have causal powers lacked by their constituents [Kim]
2322 Multiple realisation applies to other species, and even one individual over time [Kim]
2323 Emotions have both intentionality and qualia [Kim]
2325 It seems impossible that an exact physical copy of this world could lack intentionality [Kim]
2324 Intentionality as function seems possible [Kim]
2327 Knowledge and inversion make functionalism about qualia doubtful [Kim]
2328 The only mental property that might be emergent is that of qualia [Kim]
2329 Causal power is a good way of distinguishing the real from the unreal [Kim]
1550 Why didn't Protagoras begin by saying "a tadpole is the measure of all things"? [Plato on Kim]
2065 Not every person is the measure of all things, but only wise people [Plato on Kim]
530 There are two contradictory arguments about everything [Kim]