Rome and the Protestants agree on two points about keeping the law
Thesis XLVI. From what has been set out at length both in this disputation and in the one before it, it is plain that the Roman School agrees with the Protestants on one point: fallen man cannot without grace keep the precepts of the moral law in the way in which they are ordered to heavenly happiness, so that keeping them gains him a right to eternal life and furthers his everlasting salvation.
In turn the Protestants agree with the Roman School that fallen man can keep certain precepts of the moral law without the grace of Christ, at least as to the outward work, or absolutely and as to the matter or the doing of the work itself, as the Protestants put it. The Roman School says 'as to the substance of the work'. The two come to the same thing, though some Protestants reject the second way of speaking because the substance of a thing includes both its matter and its form. The question here concerns only the matter of the moral work, not its form, which depends on its end and principle.
Latin
XLVI. Porro ex iis quae tum in hac, tum in praecedenti disputatione latius exposita sunt, patet Scholam Romanam cum Protestantibus in eo consentire, quod praecepta legis moralis, sine gratia non possint ab homine lapso eo modo servari, quo sunt ad beatitudinem coelestem ordinata, & sic ut eorum observatio ad vitam aeternam homini jus acquirat, ac sempiternam ejus salutem promoveat. Vicissim vero Protestantes agnoscere cum Schola Romana, hominem lapsum, sine gratia Christi, posse servare quaedam legis moralis praecepta, saltem quoad opus externum, sive absolute, & quoad materiam vel effectionem operis ipsius, ut loquuntur Protestantes. Quod Schola Romana dicit secundum operis substantiam. Haec enim eodem redeunt, quamvis Protestantes nonnulli posteriorem istum loquendi modum improbent: quia substantia rei materiam & formam comprehendit. Hic autem agitur non de operis moralis forma, quae a fine & principio pendet, sed de materia tantum.