The common goal in people’s life is to be peaceful and happy. Being the richest man in the world does not mean you are the happiest man in the world, although money can buy you happiness sometimes, but not always. So another measurement of success you are in your is how happy your life is. It might be having a warm family and children, having lots of friends or maybe just having someone who truly loves you - See more at: http://fac.ksu.edu.sa/adalayed/publication/66617#sthash.DdvlhRZ0.dpuf