and though the principal reason that it was not made long ago is, that the possibility of the question never occurred to anybody, there is yet another reason, which is this that a satisfactory answer to this one question requires a much more persistent, profound, and painstaking reflexion, than the most diffuse work on Metaphysics, which on its first appearance promised immortality to its author.
eta arrazoirik behinena, zergatik horri aspaldidanik inor erantzuten saiatu ez den, zerako hau da, alegia inori ez zaiola bururatu holako galderarik egin zitekeenik ere; bigarren arrazoia, berriz, da, ezen galdera horri behar bezalako askitasunez erantzuteko, askoz ere gogoeta luze, sakon eta neketsuagoak egin behar direla, Metafisikako obrarik gaitzenak, bere lehen agerraldian egileari hilezkortasuna agintzen dionak, eskatzen duena baino.