I definitely disagree.

actually happiness was a real mysterious to all of us and it was said that happiness differs from every person. Some might think that way but some might not

For me, happiness depends on a human's contentment

No matter how many treasures they have, no matter how high they've become, no matter how far they go, no matter how glory they are if they are not contented on what they have they can't be truly happy.

Happy comes from our desires, our wants, our needs. Depending on how we expect something will be our happiness.

I think for us to live a happy life, we should lower our expectations, we should be contented on what we have, we should be grateful on the blessing s that we are getting. This will make our mind at ease and eventually makes us happy