ABSTRACT
Many of the most significant "things" of our world would not exist if there was not such a thing as consciousness. "Red", for example, has no meaning outside of conscious mind. It is often caused by light of a certain wavelength, but red itself is not a wavelength. I have no way of measuring the sensation of redness, or even of knowing whether what I see as red is the same as what another person sees. The concept of colour is of course just one example of the many things that hold their residence solely in the sensitive body. (These words of Galileo are quoted, and supported, in a recent article by Boghossian and Velleman, 1989.) The same is true of the whole range of what we call emotions or feelings; of love and hate, of pain and pleasure, of envy and compassion. These are the essential ingredients of our lives; they are the things about which we care the most; they are attributes or properties of conscious mind.
