While the moral law, therefore, is a formal determining principle of action by practical pure reason, and is moreover a material though only objective determining principle of the objects of action as called good and evil, it is also a subjective determining principle, that is, a motive to this action, inasmuch as it has influence on the morality of the subject and produces a feeling conducive to the influence of the law on the will.
Lege morala, beraz, ekintzaren determinazio-oinarri formala denez, arrazoimen huts praktikoaren bidez ekintzaren objektuaren determinazio-oinarri materiala ere badenez, objektiboa soilik bada ere, ongiaren eta gaitzaren izenpean, orduan ekintza horren determinazio-oinarri subjektiboa ere bada, hau da, bultzagaia, subjektuaren sentimenean eragiten duen heinean eta legeak nahimenean eragina izateko behar den sentimendua eragiten duen heinean.