Full Idea
Another problem for Ryle (from Chisholm and Geach) is that no mental state could be defined by a single range of behavioural dispositions, independent of any other mental states. (Behaviour depends upon desires as well as beliefs).
Gist of Idea
Behaviour depends on desires as well as beliefs
Source
comment on Gilbert Ryle (The Concept of Mind [1949]) by David J.Chalmers - The Conscious Mind 1.1.2
Book Reference
Chalmers,David J.: 'The Conscious Mind' [OUP 1997], p.14
A Reaction
The defence of behaviourism is to concede this point, but suggest that behavioural dispositions come in large groups of interdependent sets, some relating to beliefs, others relating to desires, and each group leads to a behaviour.