to be rich doesn't guarantee us to be happy. and everyone has their own happiness. some people happy if see their love smile. some people happy if they got A on their final exam. some of them happy if they pray etc. happiness can be anything.

I don't think all the rich are happy because the money may just be a number in their life.

As far as I am concerned，the happiness can be caught in the way to reach the goal.
Some people like pressure which pushes them to have the reason to live.
Some people like simple life that is never occupied with any busy matters.
And these all give different groups happiness.

No all rich people are not happy. Wealth does not dictate happiness. You can be happy without being rich. I think a little of each is a nice balance.

Money is not everything, but without money you can do nothing.

It's not strictly positive correlation between money and happiness, however,in a manner, money does enhance the happiness.

For me the most important to be happy is doing things makes you happy. Like a job you love, stay with people that make you feel good and make you laugh.

has nothing to do with money. you can be happy without it.