Soames begins with the notion of the mental act of predication, which he takes to be primitive. However, by way of illustration, if an agent perceives an object o as red, and so has a perceptual experience that represents o as being red, the agent predicates redness of o. Similarly, if an agent “thinks of” o as red[19], or “form[s] the nonlinguistic perceptual belief that o is red”.[20] For Soames, predicating redness of o does not amount to believing that o is red. To believe that o is red,