We know so well that one cannot be truely happy nor free, if he cannot free himself from other's judgement. (One cannot be totally indifference to how others see him/herself, but at least free to the degree that they do not affect your major decisions)

Why do we live then? To do what we are interested in? to do a service to our kind?
To seek true? To seek happiness? Why? What's the place of achievement? Diligence? Knowledge? Love? Responsibility? and MONEY?

I know men and women smarter than me have tried to answer, and I have little to add to the discussion. But, we all have to find our own answer.