suppose Tb, T1, T2, ..............Td are stages(time) of any human and
t = Td - Tb ( Tb means birth time and Td Death time)
If t ==0 then LIFE definition not applicable
If t > 0
1. At Tb you are poor and At Td you are alos poor
NO LIFE
2. At Tb you are poor and At Td u r rich
That is called Best LIFE
3. At Tb you are rich and At Td u r also rich
That is called LIFE

>>>>This will be Base class for Life , Derived may be dependent on human to human.