Part 5, Paragraph 10, Discourse on Method (pg 31)

In part 5, Paragraph 10 of Discourse, Descartes is explaining the brain of living things which he implies that both humans and animals are made with. He talks about the brain and its functions. How the brain uses the senses and the brain responds to light, sound, smell, touch, and taste. Also, he says the brain lets you have internal passions to think about when you are hungry, thirsty, sleeping, awake and dreaming. Also, Descartes says the brain has the capability to reserve memories and to have an imagination. He says when we want something for example, a message goes to our brain so that we are capable of obtaining what we want. But the thing I do not understand is that in this whole paragraph Descartes is pretty much grouping animals and humans together as one group, saying that because we have brains that this makes us and animals more powerful than anything that could be made by man. "For they will regard this body as a machine which, having been made by the hands of God, is incomparably better ordered and has within itself movements far more wondrous than any of those that can be invented by men." Does he contradict himself in the next two paragrahs when he goes on and on about how because animals do not have the same language as us, that they are no where near our intelligence level? I feel like in these 3 paragraphs, Descartes contradicts himself by saying we have the same internal organs (paragraph 10) yet animals are no where near the intelligence level of humans (paragraphs 11&12).