If we examine the operations of body, and the production of effects from their causes, we shall find that all our faculties can never carry us farther in our knowledge of this relation than barely to observe that particular objects are constantly conjoined together, and that the mind is carried, by a customary transition, from the appearance of one to the belief of the other.
Soinaren eragiketak eta efektuak euren kausetatik sortzea aztertzen badugu, aurkituko dugu gure ahalmen guztiek sekula ez gaituztela, erlazio honen ezagutzan, zeintzu objektu dauden etengabe loturik ohartze soiletik harago eramango, eta gogoa ohiturazko transizioak daramala bataren agerpenetik bestea sinestera.