But if pure reason of itself can be practical and is actually so, as the consciousness of the moral law proves, then it is still only one and the same reason which, whether in a theoretical or a practical point of view, judges according to a priori principles; and then it is clear that although it is in the first point of view incompetent to establish certain propositions positively, which, however, do not contradict it, then, as soon as these propositions are inseparably attached to the practical interest of pure reason, it must accept them, though it be as something offered to it from a foreign source, something that has not grown on its own ground, but yet is sufficiently authenticated;
Baina arrazoimen hutsa bere kabuz praktikoa izan badaiteke, eta bada benetan, lege moralaren kontzientzian erakusten duenez, orduan arrazoimen bat eta berbera da, dela asmo teoretikoan dela praktikoan, apriorizko printzipioen arabera juzgatzen duena, eta beraz, argi dago ezen, haren ahalmenak lehen asmoaren arabera ezin baditu esakune jakin batzuk baieztatuz finkatu, nahiz eta hura ez duten kontraesaten, bada, hala ere, esakune horiek modu bereiztezinean arrazoimen hutsaren interes praktikoari dagozkion bezain pronto, horiek bere soroan hazi ez diren eskakizun arrotz gisa onartu behar ditu, nahikoa bermatuta baitaude, eta horiek arrazoimen espekulatibo gisa bere esku duen guztiarekin alderatzen eta elkarlotzen saiatu behar du;