Those who don't push their own personal boundaries. Not having a passion for adventure and exploration. Viewing everything in a bad light. Never seeing the good, the beautiful, the amazing. Not having an innocent child like fascination of the world around us, being unable to view it as if it were for the first time, with bright wide open eyes, ears and mind. Not having the will power to endure and persist in order to achieve an objective or personal goal. Being kinaesthetically, visually and audially dead inside. Dwelling on and making constant reference the past instead of looking forward to the future.