” Lives of great men all remind us

       We can make our lives sublime,

     And, departing, leave behind us

     Footprints on the sands of time; ” H.W. Longfellow





People have been classified into different categories according to their external behavior. Different branches of study have interpreted human behavior and classified them into categories. All studies reveal that categorising is only for a broad study, for in fact there can be as many categories as people on earth . Now let us have a look at a few lives of people who have left behind their spirit to shape new thinking minds, serving hands, feeling hearts and speeding legs to distinguish men to be superior to animals in the rung of evolution.