India, March 15 -- There are some common elements of mind and temperament across the human species. This is notwithstanding the history of physical anthropology which has studied all parts of the human body and highlighted differences which arose out of extended use of topography, exposure to climate and even water. The colour of the skin, height differences, shape of the eye are among the more obvious differentiating features between races. Though all humans have the same organs, their size and intensity of functioning varies, too. For instance, the size of the brain of some groups is open to differentiation. This brings in the role and scope of abstraction in human life. Neurology at the present stage cannot explain all levels of the fu...