according to each person life is not fair like people always want to get something which they can't get so they always compare their self with other and saying that life is not fair with himm
I think it's half and half. One half is due to unchangeable circumstances - what part of the world you were born, what family you're born into, and what your own talents/abilities are. The other half is changeable circumstances - the desire to succeed, schooling, networking/connections, what you want out of life. Most people will always say it's not fair though, mainly because things don't go their way. I would judge what type of person they are depending on the action they take after saying these words.
There are ups and downs in the life but never forget that "After the game, the king and pawn go into the same box."
I like your question, it is also true that not also true. Because the world is inherently nothing is absolute, right?
Life is unfair to almost all the people at least during certain part of their life. Ups and downs are very common in life and it is our attitude that makes the difference. Learn from your mistakes