  Reid accepts, for roughly Berkeley's reasons, that sensations cannot possibly resemble their causes—a fact that Reid deploys in his Sensory Deprivation Argument discussed above. Further, he accepts Berkeley's objections to Locke, and takes them to show that no mental events or states, whether sensations or the conceptions of objects that follow them, could possibly resemble any non-mental object. Another reason that Reid cannot draw the distinction between primary and secondary qualities in the way that Locke did is that he denies that conceptions of objects which we have following sensory experiences are to be analyzed as perceptions of ideas. Instead, these conceptions function to make us aware of qualities in objects that caused the sensations. All of this would make it seem that Reid would simply side with Berkeley and deny that there is any important difference between primary qualities and qualities like colors, sounds, tastes and smells. Instead, Reid defends the distinction between primary and secondary qualities on grounds quite different from Locke's, grounds that he takes to be immune to Berkeley's criticisms of the distinction.