The second principle, the affirmation of liberty even under the action of efficacious grace, has always been safeguarded, and there is not one of his anti-Pelagian works even of the latest, which does not positively proclaim a complete power of choice in man; “not but what it does not depend on the free choice of the will to embrace the faith or reject it, but in the elect this will is prepared by God” (De Prædest. SS., n. 10). T… Julian of Eclanum, denying the sway of concupiscence, conceives free will as a balance in perfect equilibrium. Augustine protests: this absolute equilibrium existed in Adam; it was destroyed after original sin; the will has to struggle and react against an inclination to evil, but it remains mistress of its choice (Opus imperfectum contra Julianum, III, cxvii). Thus, when he says that we have lost freedom in consequence of the sin of Adam, he is careful to explain that this lost freedom is not the liberty of choosing between good and evil, because without it we could not help sinning, but the perfect liberty which was calm and without struggle, and which was enjoyed by Adam in virtue of his original integrity…But there is one work of Augustine, dating from the year 397, in which he clearly explains his thought — a work which he not only did not disavow later on, but to which in particular he referred, at the end of his career, those of his readers who were troubled by his constant affirmation of grace. For example, to the monks of Adrumetum who thought that liberty was irreconcilable with this affirmation, he addressed a copy of this book “De Diversis quæstionibus ad Simplicianum,” feeling sure that their doubts would be dissipated. There, in fact, he formulates his thoughts with great clearness. Simplician had asked how he should understand the Epistle to the Romans 9, on the predestination of Jacob and Esau. Augustine first lays down the fundamental principle of St. Paul, that every good will comes from grace, so that no man can take glory to himself for his merits, and this grace is so sure of its results that human liberty will never in reality resist it, although it has the power to do so. Then he affirms that this efficacious grace is not necessary for us to be able to act well, but because, in fact, without it we would not wish to act well. From that arises the great difficulty: How does the power of resisting grace fit in with the certainty of the result? And it is here that Augustine replies: There are many ways of inviting faith. Souls being differently disposed, God knows what invitation will be accepted, what other will not be accepted. Only those are the elect for whom God chooses the invitation which is foreseen to be efficacious, but God could convert them all: “Cujus autem miseretur, sic cum vocat, quomodo scit ei congruere ut vocantem non respuat” (op. cit., I, q. ii, n. 2, 12, 13).