In his book The Republic, Plato critiques art as being detached from knowledge and truth. He contends that actual objects, which are themselves flawed replicas of ideal Forms, are all that art does. A painting of a chair, for instance, is three steps distant from reality since it just depicts the object's appearance and not its core. Plato also criticizes art because he thinks it might divert people from logical comprehension by appealing to sense perception and emotion. According to Plato, art provides unreliable and untrustworthy information by arousing emotions without providing genuine understanding.