Full Idea
The constraints of rationality ought to be thought of adverbially; they are a matter of the way in which we coordinate our intentionality.
Clarification
'Intentionality' is the capacity to think ABOUT things, to have meaning
Gist of Idea
Rationality is the way we coordinate our intentionality
Source
John Searle (Rationality in Action [2001], Ch.1.II)
Book Reference
Searle,John R.: 'Rationality in Action' [MIT 2001], p.23