The second phase of the revolt precisely reverses the strategy of the first. Those who have formulated its principles concede, or rather insist upon, the relativity of the content of perception to a situation in which the perceptual or cognitive act is an essential, and the proximately determinative, factor. The influences which have contributed most to the development in our time of this form of ostensibly realistic philosophy seem to be three, two of them rather old, the other new. The new relativism often sounds like an echo of this familiar strain. The doctrine of the subjectivity of the secondary qualities is the most familiar historic example of the effect of this combination of a non-relational conception of the object to be known with a relativistic conception of the content of experience. The objective relativist's account of the historic and logical origin of dualism is, in truth, a complete misconception.