Jansenius on the two kinds of help (De gratia Christi 2.4)
Thesis VII. For he observes that the will's helps are of two kinds. One is a help without which the will cannot will, yet in such a way that willing or not willing, using the help or not using it, is left to its free choice. The other is a help by which it is determinately brought about that the will wills.
He holds that the grace of man in his integrity was a help of the first kind, and that the grace by which Christ heals corrupt man is a help of the second kind. 'The difference between the two graces, of health and of healing,' he says, 'lies in this: the help of that first integrity so helped the will that the will itself might work with it, if it chose; now the help itself makes it will.
That is, before the ruin the help was such that its influence on the work, just like the will's, hung on the free will's own nod, so that the indifference of liberty, able to bend either way, remained intact. Now, after the ruin, it is such that it makes the will assent, and flow into the work, and will' (De gratia Christi salvatoris, book 2, chapter 4).
Latin
VII. Nam observat vir ille adjutoria voluntatis duplicis esse generis. Adjutorium unum esse sine quo voluntas velle non potest, sic tamen ut velle & nolle, uti vel non uti adjutorio, in ejus libero relinquatur arbitrio: aliud quo fit determinate ut voluntas velit. Ac gratiam hominis integri pertendit adjutorium fuisse primi generis, gratiam vero qua Christus hominem corruptum sanat adjutorium secundi generis. In eo, inquit, utriusque gratiae, sanitatis & medicinalis differentia in eo sita est, quod illius primae integritatis adjutorium sic adjuvabat voluntatem, ut cum eo operaretur ipsa, si vellet; nunc autem ipsum adjutorium facit ut velit. Hoc est, adjutorium ante ruinam erat tale, ut influxus adjutorii, perinde atque voluntatis in opus, ab ipso liberae voluntatis nutu penderet, adeoque salva maneret illa libertatis in utramque partem flexibilis indifferentia: nunc vero post ruinam tale est, ut faciat annuere, & influere, & velle voluntatem. De Gratia Christi salvatoris lib. 2. cap. 4.