Some people are unhappy because they are not satisfied on what they have. Greed is one of the nature of human being, other people doesn't realized that being greedy can hurt and can kill people, that's why it is called one of the seven deadly sin. Some people I noticed that they love money more than anything in this world, but remember that love of money is a root of all kinds of evil this world, that is why the best things in order for us to make happy are to appreciate the things that we have blessed, and love not the money but those people who are continuing to support us, such us friends, family and love ones.