17. The ideas of the primary alone really exist.
The particular bulk, number, figure, and motion of the parts of fire
or snow are really in them,--whether any one's senses perceive them or no: and therefore they may be called real
qualities, because they really exist in those bodies. But light, heat, whiteness, or coldness, are no more really in
them than sickness or pain is in manna. Take away the sensation of them; let not the eyes see light or colours, nor
the ears hear sounds; let the palate not taste, nor the nose smell, and all colours, tastes, odours, and sounds, as they
are such particular ideas, vanish and cease, and are reduced to their causes, i.e., bulk, figure, and motion of parts.
