Daniel Gilbert, a professor at Harvard, notes that mental - health experts “have spent decades studying the relation between wealth and happiness, and they have generally concluded that wealth increases human happiness when it lifts people out of abject poverty and into the middle class. ”
Daniel Gilberti, profesor në Harvard, thotë se specialistët e shëndetit mendor « kanë harxhuar dekada të tëra duke studiuar lidhjen mes pasurisë dhe lumturisë.