Thus, for example, having observed that when we perceive by sight a certain round luminous figure we at the same time perceive by touch the idea or sensation called HEAT, we do from thence conclude the sun to be the cause of heat.
Horrela, adibidez, konturaturik guk ikusmenaren bidez figura biribil eta argitsu bat hautematen dugunean, aldi berean ukimenaz "berotasuna" deritzan ideia edo zentzazioa hautematen dugula, guk hemendik, eguzkia dela berotasunaren kausa ondorioztatzen dugu.