For as to the question how a law can be directly and of itself a determining principle of the will (which is the essence of morality), this is, for human reason, an insoluble problem and identical with the question: how a free will is possible.
Izan ere, lege bat bere kabuz eta bitartegabe nola izan daitekeen nahimenaren determinazio-oinarri, hori giza arrazoimenak konpondu ezin duen arazoa da, eta beste honen berbera, hots, nola den ahalgarri nahimen aske bat.