For as to the operations of spirits, both their thinking and moving of bodies, we at first sight find ourselves at a loss; though perhaps, when we have applied our thoughts a little nearer to the consideration of bodies and their operations, and examined how far our notions, even in these, reach with any clearness beyond sensible matter of fact, we shall be bound to confess that, even in these too, our discoveries amount to very little beyond perfect ignorance and incapacity.
Zeren espirituen eragiketei dagokienez, hau da, pentsatzeko eta gorputzak mugitzeko duten ahalmenei dagokienez, gu lehen ikusian galduta aurkitzen gara, nahiz eta agian gero, gure pentsamenduak gorputzak eta euren eragiketak arreta handiagoz kontsideratzen jarri eta gure nozioak egitatezko arazoez harindi nolabaiteko ziurtasunez noraino heltzen diren aztertzen dugunean, aitortu beharra izanen dugun gure aurkikuntzak, honi buruz ere, ez doazela erabateko ezjakite eta ezgaitasunetik askoz harago.