Rene Descartes was a french philosopher. He was known for the famous line "I think, therefore I am." During his time many people believed that the behavior of people was just based on free will. Descartes said that the body we have functions like a machine. There are movements that our bodies make that are involuntary, otherwise known as reflexes. I agree that our behaviors are a mixture of both, our mind and our body. Our behaviors can be thought out or it could just happen, involuntary.