very good old question,animals just live their life by the natural instinct never think about the meaning of their living.Interesting,human is tatally defferent,and like to wander about this. and most of people would say like,"we are living for our bread.we are living for our dreams,our goals.we are living for fun.we are living for carrying on the family line.we are living for make the world better.......yeh,surely these are true at every individual's standpoint.But we can never exist singly in the world. In the human's world,human are supposed to live for love,not only our lives givers and those you well-known,but what's more is every individual that exist in this world. If human's seciety is full of love,that perfect love.then no hatred,no poor,no hunger,no war,all kinds of wars,no crime,no fraud,no greed,no divorce, so-called generation gap,no.......... then all people live in the perfect condition,love others and be loved. here another quetion is "we are all not perfect,then how can we live with a perfect love?Even more or what is love? and if we are all with the perfect love.but we all have to disappear some years later,and according to the science stduy report(,if that is true),the earth still have its expectancy even if the earth is not destroyed or suffer any damage from human ,so it will also disappear many many years later. so seen from the future, the earth and us are just like a game,yes,so what are we living for ?