I have to agree with this. We often conclude that the purpose of life is to be happy in fact, it was Aristotle who depicted that values to us. Despite of this particular quote, we have forgotten to scrutinize it in a way that people will not have misinterpretations on the idea of happiness. We forgot to think that in able for someone to be happy is first to be appreciated in such ways that he/she will be satisfied. So, satisfied with what?
Check this out. https://medium.com/art-of-practicality/the-purpose-of-life-is-not-happiness-its-usefulness-65064d0cdd59#.jno41bxqo credits to Darius Foroux, Author of Massive Life Success, and founder of@ProcrastZero.