Article 63 (Social security and solidarity) (1) Everyone shall have the right to social security. (2) The state shall be charged with organising, coordinating and subsidising a unified and decentralised social security system, with the participation of the trade unions, other organisations that represent workers and associations that represent any other beneficiaries. (3) The social security system shall protect citizens in illness and old age and when they are disabled, widowed or orphaned, as well as when they are unemployed or in any other situation that entails a lack of or reduction in means of subsistence or ability to work. (4) All periods of work shall, as laid down by law, contribute to the calculation of old age and disability pensions, regardless of the sector of activity in which they were performed. (5). With a view to the pursuit of the social solidarity objectives (...) the state shall, as laid down by law, support and inspect the activities and operation of private charitable institutions and other non-profit institutions that are recognised to be in the public interest.