Comment: 11 pagesI propose that quality of life can be compared despite the difference in values across cultures when it is experienced at the sensory and perceptual level. I argue that an approach to assessing quality of life which focuses on an individual's ability to organize his or her context by perceiving positive constellations of factors in the environment and his or her ability to achieve valuable acts and realize valuable states of being is more meaningful than the approaches of metrics which focus directly, and often solely, on the means of living and the means of freedom. Because the felt experience of quality of life is derived from a constellation of factors which make up the indivisible structure of a milieu, the experience of quality of life cannot be regarded as a subjective experience. Through the example of how different frequencies, and mixtures of frequencies, of light are perceived as colour by the eye, I demonstrate that the human cognitive apparatus, because of its relation to the object that is measured, apprehends different scales of quantity as degrees of quality. I show that lived experience is the result of a selective relationality with one's environment and that the experience of quality has something to do with the perception of entities in their interrelated and networked nature as wholes.