 Second, colors, sounds, tastes, smells, are sensations. Price uses the example of pleasure and pain to illustrate the point. The entry of the knife into the body causes the person to feel pain, but it is absurd to think that the pain might be a property of the knife; pains can only be a property of conscious perceivers. But the colors we see and the sounds we hear are equally sensations. Therefore, it is incoherent to suppose that they might be properties of matter.