The Fundamental Law of Hungary

Land
Hungary

Article M (Foundation) (1) The economy of Hungary shall be based on work which creates value, and on freedom of enterprise. […]
Article XI (Freedom and Responsibility) […] (3) An Act may provide that financial support of higher education studies shall be subject to participation for a specific period in employment or to performing entrepreneurial activities for a specific period, regulated by Hungarian law.
Article XII (Freedom and Responsibility) (1) Everyone shall have the right to choose his or her work, and employment freely and to engage in entrepreneurial activities. Everyone shall be obliged to contribute to the enrichment of the community through his or her work, in accordance with his or her abilities and potential. […]