"It may be remarked incidentally that the recognition of the relational character of scientific objects completely eliminates an old metaphysical issue. One of the outstanding problems created by the rise of modern science was due to the fact that scientific definitions and descriptions are framed in terms of which qualities play no part. Qualities were wholly superfluous. As long as the idea persisted (an inheritance from Greek metaphysical science) that the business of knowledge is to penetrate into the inner being of objects, the existence of qualities like colors, sounds, etc., was embarrassing. The usual way of dealing with them is to declare that they are merely subjective, existing only in the consciousness of individual knowers. Given the old idea that the purpose of knowledge (represented at its best in science) is to penetrate into the heart of reality and reveal its "true" nature, the conclusion was a logical one. ...The discovery of the nonscientific because of the empirically unverifiable and unnecessary character of absolute space, absolute motion, and absolute time gave the final coup de grâce to the traditional idea that solidity, mass, size, etc., are inherent possessions of ultimate individuals."