The article considers the concepts of "money" and "labour" in the light of the categorical analysis in economic science. "Money" and "Labour" are socio-economic categories; consideration of each of them is possible only within the requirements of the interdisciplinary approach connecting an economic science. For the analysis of money as a social institute, it is necessary to formulate the new "social philosophy of money" which considers it as a social, and not just as a financial institution. Labour also is a social institution; when functioning it is closely connected with other fundamental institution - with property, freedom and justice. In the postindustrial society, labour will change from maintenance; it will transform into creative activity.