Therefore in metaphysics, as a speculative science of pure reason, we can never appeal to common sense, but may do so only when we are forced to surrender it, and to renounce all purely speculative cognition, which must always be knowledge, and consequently when we forego metaphysics itself and its instruction, for the sake of adopting a rational faith which alone may be possible for us, and sufficient to our wants, perhaps even more salutary than knowledge itself.
baina egin daiteke hori Metafisika derrigor baztertu beharra dagoenean edo ezagutza espekulatibo oro, hauxe izan behar baitu edozein jakintzak, alde batera utzi beharra dagoenean, eta beraz Metafisika bera eta honen irakatsia ere baztertu beharra dagoenean (zenbait zirkunstantziatan), eta aurkitzen denean, ezen guretzat arrazoizko uste bat bakarrik dela posible, gure premiarentzat aski izango dena (eta apika osasungarriagoa ere bai jakintza bera baino).