All are born equal in corruption; the difference lies in God's restraint
Thesis IX. So, in the opinion of these divines, if man's nature is considered in itself, all men are born equal, and none is better or worse than another. Whatever difference appears between them in this respect is to be ascribed to God's secret dispensation, by which men's passions are not cleansed within but are held in check so that they do not boil over more violently.
For although a Lerna of every kind of evil lies hidden in each person's breast, God lets some indulge their vices and be driven as if by furies. Others he moves by shame, respect for the laws, and the love of a good name and of undying fame, and keeps them to some extent within their duty. So the fact that not all emperors were Caligulas, nor all other men like Timon, is not something we should credit to nature, as if she were a mother to some and a stepmother to others. We should recognise God, who leaves some to their lust and curbs and holds back others in various ways.
Latin
IX. Itaque ex horum Doctorum sententia si natura hominis in se consideretur, omnes homines pares nascuntur, nec alter altero melior aut pejor est: quod vero discrimen inter eos hac in parte cernitur, tribuendum est arcanae Dei dispensationi, per quam hominum affectus, non intus purgantur quidem, sed coercentur ne ferventius ebulliant. Quamvis enim lateat in singulorum pectoribus quaedam veluti Lerna malorum omne genus, tamen alios Deus indulgere vitiis, & quibusdam veluti furiis agitari patitur: alios pudore, legum reverentia, existimationis bonae, ac immortalis famae amore tangit & in officio quadantenus continet: ut quod omnes Imperatores non fuerunt Caligulae, aut caeteri homines Timoni similes, non id naturae quae mater aliis, aliis fuerit noverca imputemus, sed Deum agnoscamus alios permittentem suae libidini, alios variis modis fraenantem atque reprimentem.