He that shall but observe what a great variety of alterations any one of the baser metals is apt to receive, from the different application only of fire; and how much a greater number of changes any of them will receive in the hands of a chymist, by the application of other bodies, will not think it strange that I count the properties of any sort of bodies not easy to be collected, and completely known, by the ways of inquiry which our faculties are capable of.
Metalik baxuenak suaren eraginez soilik zenbat aldaketa ezberdin nozitu ditzakeen ikusi eta kimikari batek beste gorputz batzuk aplikatuz zenbat gehiago hartuko lituzkeen konturatzen denak ez luke harrigarri aurkituko nik uste izatea ez dela hain erraz nolanahiko gorputzaren propietateak biltzea eta guztiz ezagutzea gure ahalmenen neurriko ikerketaren bidez.