more on this theme | more from this thinker
Full Idea
My knowing that I had a hidden birth-mark would not entitle me to infer with any great degree of confidence that the same was true of everybody else.
Gist of Idea
You can't infer that because you have a hidden birth-mark, everybody else does
Source
A.J. Ayer (The Central Questions of Philosophy [1973], §VI.E)
Book Ref
Ayer,A.J.: 'The Central Questions of Philosophy' [Penguin 1976], p.134
A Reaction
This is the notorious 'induction from a single case' which was used by Mill to prove that other minds exist. It is a very nice illustration of the weakness of arguments from analogy. Probably analogy on its own is useless, but is a key part of induction.
| 5322 | Self-consciousness is not basic, because experiences are not instrinsically marked with ownership [Ayer] |
| 5326 | Qualia must be united by a subject, because they lead to concepts and judgements [Ayer] |
| 5325 | Is something an 'experience' because it relates to other experiences, or because it relates to a subject? [Ayer] |
| 5324 | Bodily identity and memory work together to establish personal identity [Ayer] |
| 5327 | Temporal gaps in the consciousness of a spirit could not be bridged by memories [Ayer] |
| 5329 | Why shouldn't we say brain depends on mind? Better explanation! [Ayer] |
| 5328 | Originally I combined a mentalistic view of introspection with a behaviouristic view of other minds [Ayer] |
| 5330 | Physicalism undercuts the other mind problem, by equating experience with 'public' brain events [Ayer] |
| 5331 | You can't infer that because you have a hidden birth-mark, everybody else does [Ayer] |
| 2613 | The theory of other minds has no rival [Ayer] |
| 16520 | We see properties necessary for a kind (in the definition), but not for an individual [Ayer] |
| 2611 | It is currently held that quantifying over something implies belief in its existence [Ayer] |
| 2610 | Talk of propositions is just shorthand for talking about equivalent sentences [Ayer] |