The approach of the intellect is a issue that takes into account questions about the nature with the mind plus the ways in which the main mental and also physical happen to be related. A single prominent idea is that of duplicity, which says that the body and mind are not one but two distinct entities. The most important dualist theorist your time was Rene Descartes. His or her famous quote, 'I feel, therefore I are, ' required that since he could have a baby of her being, having been a being. The person concluded that often the mental together with physical are generally distinct for several reasons: we have sure of often the mental (we know all of us think), nevertheless we are not as sure about the bodily; one is not able to divide your head, but people are able to break down the body; last of all, because one can possibly imagine by yourself living wthout using body, your brain and the body system must be distinct entities.