Full Idea
There are too many objections to the argument from analogy, so I am inclined to revert to a 'behaviouristic' interpretation of propositions about other people's experiences.
Gist of Idea
The argument from analogy fails, so the best account of other minds is behaviouristic
Source
A.J. Ayer (Introduction to 'Language Truth and Logic' [1946], p.26)
Book Reference
Ayer,A.J.: 'Language, Truth and Logic' [Penguin 1974], p.26
A Reaction
It seems odd to vote for behaviourism on one issue, if you aren't a general subscriber. It is one thing to say that behaviour is the best evidence for your explanation, quite another to equate the other mind with its behaviour.