Be happy at work: if you have to work, so try to find happiness and

pleasure in your work, no matter how trivial the work is.  Thus we can harvest happiness when we are working.

       Work for happiness: we work hard because we expect that we will be happier in the future.

       So your happiness is your responsibility: get it each day during your working time, and don't try to wait for the big happiness in the future. And try hard to get it for you and for everyone around you.