Ryle states that Descartes made a category mistake when explaining the relationship between mind and body. A category mistake can be best described using an example. The example Ryle uses in the textbook is looking at a university building and asking where the university is located. Essentially a category mistake is a mistake where different things belonging to the same category are represented in different categories such as buildings and university. The university example is a similar situation to that with which Descartes describes the mind and body. He describes the mind and body as distinct from each other, while Ryle describes the mind and body as part of each other. Ryle confirms his statement by stating the idea of ​​the “ghost in the machine dogma”. He describes the ghost in the machine by saying, “Although the human body is an engine, it is not quite an ordinary engine, for some of its workings are governed by another engine within it” (Introduction to Philosophy p.369). This means that the mind is a motor within the body. This is an incorrect statement because the mind is not part of the body because the mind is not tangible and the body is tangible. If the body were to be influenced by an observed event, the mind would not be because to influence the mind one must experience a