Full Idea
Freedom at least involves the power of acting according to an idea.
Gist of Idea
Freedom involves acting according to an idea
Source
G.E.M. Anscombe (Causality and Determinism [1971], §2)
Book Reference
'Causation', ed/tr. Sosa,E. /Tooley,M. [OUP 1993], p.102
A Reaction
Since 'you' presumably have to sit above the idea and pass a judgement on it, then the same principle should apply to acting on a desire, which presumably 'you' could reject because it just wasn't attractive enough.