 Cavendish would then just need to appeal to the assumption that the bodies that make up the brain are not essentially different from the bodies that compose everything else. Or better put: she would need to appeal to the assumption that the elemental bodies that make up the bodies that make up the brain are not essentially different from the elemental bodies that compose the bodies that make up everything else. She takes that assumption to be confirmed in the behavior of the bodies that surround us. We might again consider bees, or ants, or the natural and highly sophisticated processes by which an eyeball is produced, or the process of the formation of metal. She writes,