or, if it be so, our boundaries of species are not exactly conformable to those in nature. For we, having need of general names for present use, stay not for a perfect discovery of all those qualities which would BEST show us their most material differences and agreements; but we ourselves divide them, by certain obvious appearances, into species, that we may the easier under general names communicate our thoughts about them. For, having no other knowledge of any substance but of the simple ideas that are united in it;
edo, hau horrela bada, guk espezieei ezartzen dizkiegun mugak ez datoz doi-doi bat naturak ezarritakoekin. Zeren jadanik erabiltzeko behar ditugun izen orokorren premian, ez gara ahalegintzen berauen koalitateak aztertzen, nahiz eta hauen bidez hobeto ezagutuko genituzkeen euren ezberdintasunik eta antzekotasunik esentzialenak: guk geuk, beraz, sailkatzen ditugu espezieka, edonork hauteman ditzakeen itxuren eraginez, izen orokorren bidez eurei buruzko geure pentsamenduak elkarri errazago komunikatu ahal izateko.