 Several scholars urge that in Descartes’ considered opinion, SQs are sensations without representative content (M. Wilson 1978: 114–16; Vinci 1998: 196–98, 199–200; MacKenzie 1990). This is based on Principles 1.68 and 70, which say that colors, etc, are clearly known when they are regarded merely as sensations and we make no error if we judge there is something in bodies whose nature we do not know which causes the sensations in us. But these texts would mark a change of mind if they implied these ideas represent nothing but what we clearly know. The scholars mentioned in the next section are among those who are not persuaded that Descartes abandons the view of ideas of SQs in Meditation 3 and the exchange with Arnauld.