Nor do they deny the power to act otherwise: neither the act nor grace removes it
In the same way, when they say it is false that a free agent, given everything required for acting, can act and not act, and do this and that, they do not mean that whatever prepares and drives him to act takes away his ability to act otherwise or to hold the act back. They acknowledge that the act itself does not remove that ability, much less the things that drive him to it.
They do not deny that someone who by God's grace shows mercy to the needy always keeps in himself the power not to show it, or that someone who scorns this world's pleasures keeps the ability to pursue and embrace them; God's grace does not take that ability from him.
Their only point is that once everything required for acting is in place, a free agent cannot fail to act, even though he otherwise keeps an ability by which he could refrain or act differently. For instance, once everything needed on God's side to produce a man's faith and conversion is in place, the man cannot fail to be converted and believe, though always, even while he believes and is converted, he keeps an ability by which he could fail to believe and be converted.
Latin
XXVII. Et similiter quum dicunt falsum esse quod agens liberum, positis omnibus quae sunt ad agendum requisita, possit agere, & non agere, hoc & illud agere, sententia eorum non est, per ea quae ad agendum praeparant & impellunt, ab agente libero tolli facultatem aliter agendi, aut actionem suspendendi: quandoquidem agnoscunt facultatem illam per actum ipsum non tolli; nedum per ea quae ad agendum impellunt. Nec enim negant eum qui per Dei gratiam egentis miseretur, in se semper habere potestatem non miserendi, & qui mundi hujus voluptates contemnit, retinere facultatem illas quaerendi atque amplectendi, quae per divinam gratiam ab eo non aufertur. Adeoque non aliud intendunt quam hoc, positis omnibus quae requiruntur ad agendum, contingere non posse ut agens liberum non agat: licet alioqui maneat in eo facultas qua posset non agere, aut aliter agere. Exempli gratia, fieri non posse quin positis omnibus quae ex parte Dei necessaria sunt ad fidem & conversionem hominis producendam, homo convertatur & credat; quanquam semper, & etiam quum credit & convertitur, in eo maneat facultas, qua non credere & non converti posset.