Appendix: Gregory of Valencia on efficacious grace
Thesis CXLI. So that some pages are not left blank here, we will add in brief, as an example, the opinion of Gregory of Valencia, a Jesuit of some note, which a number of learned men report and refute. He holds that efficacious grace consists in a gift that a person already forestalled by calling and stirring grace can obtain, with God's help, through devout use of his free choice. In one order of cause, the efficient, this gift is by nature prior to the free conversion itself; in another, the material and dispositive, it is posterior.
Latin
CXLI. Ne tamen quaedam paginae hic vacent, summatim adjiciemus, quasi exempli causa, sententiam Gregorii de Valentia Jesuitae satis nobilis, quam plures viri docti referunt & refutant. Ille igitur existimat gratiam efficacem consistere in aliquo dono, quod homo jam praeventus a gratia vocante & excitante, possit cum auxilio Dei consequi, per pium usum sui liberi arbitrii: quodque in uno genere causae, scilicet efficientis, sit natura prius quam ipsa libera conversio; & in alio posterius, scilicet in genere causae materialis atque dispositivae.