The intellect the root and condition sine qua non of the will's freedom
The scholastic theologians generally say the intellect is not free in itself and formally. Still they grant that it holds the root and cause of the will's freedom, at the least as the condition without which there would be none.
That freedom arises because the human intellect does more than set different objects before the will. It also weighs them against each other, sees different aspects of good and evil in a single object, and in a manner points them out to the will.
That is why the will can refuse or accept the same object and choose this or that among many, and in this the use of freedom consists.
Latin
IX. Porro quamvis Theologi Scholastici communiter statuant intellectum non esse liberum per se & formaliter, agnoscunt tamen in eo esse radicem & causam, saltem sine qua non, libertatis illius quae est in voluntate: quae, scilicet, ex eo nascitur quod intellectus humanus non tantum varia objecta voluntati proponat, sed ea quoque inter se comparet; ac in uno & eodem objecto varias boni & mali rationes percipiat, & voluntati quodammodo demonstret. Unde fit ut voluntas possit unum & idem objectum respuere, vel amplecti, & inter objecta varia istud, vel illud eligere: qua in re positum est libertatis exercitium.