In other words, the identical replica is exactly ourselves. If we imagine a person exactly like us who presents himself as we normally do, same name, same words, same gestures and same body language, we will probably get angry simply because he is not us. A cloning man will never replace the original person. Each of the above views is undesirable for defining personal identity. It would be more desirable if we drew a connection between body and mind, which is called the brain. The brain is the place where thoughts and emotions are formed and take place, it is also the most important organ that controls every single muscle in the human body and every little sensation. Therefore, we can say that the brain is interactive with both the body and the mind. Tying back to the concept of personal identity, the idea that people are brain-identical links Weirob and Cohen's point of view due to the interaction between the three. The self could be defined in several ways. In John Perry's “Dialogue on Personal Identity and Immorality,” both characters Weirob and Cohen are right about their argument on personal identity, there are just some flaws in each of the views. My view of “people are identical to brains” fills the gaps in ideas about them. The brain is the junction that could bring the mind and