Afterwards, in process of time, men being convinced that colours, sounds, and the rest of the sensible, secondary qualities had no existence without the mind, they stripped this substratum or material substance of those qualities, leaving only the primary ones, figure, motion, and suchlike, which they still conceived to exist without the mind, and consequently to stand in need of a material support.
Gero, denbora joan ahala, gizakiak konbentzitu zirenez koloreak, hotsak eta gainerako nolakotasun sentigarri sekundarioak ez zutela inolako existentziarik adimendua gabe, kendu egin zizkioten nolakotasunok "substratum" edo substantzia material honi, primarioak soilik utziz: figura, higidura e.a.