ABSTRACT
This chapter discusses that the truth of a class of the judgments which affirm that colours, sounds, tastes, smells, touches are qualities of physical things. The principle advocated for the saving of appearances demands that the possession of qualities by an object be taken, not as absolute, but as relative. It is worth noticing that the arguments do not attack the concept of quality as such, for physical objects continue to be thought of as characterised by primary qualities. The physicist's actual procedure cuts right across, and ignore, all classificatory boundary-lines dividing the supposedly physical from the supposedly mental. Perception furnishes genuine knowledge of the nature of physical things, discover that the qualities which physicist perceives them to have are subject to, and variable with, conditions of which they can formulate the laws. The view in the text tries to do justice to what is sound in the phenomenalistic position.
