Rerum Novarum §56

⁵⁶ In order that an association may be carried on with unity of purpose and harmony of action, its administration and government should be firm and wise. All such societies, being free to exist, have the further right to adopt such rules and organization as may best conduce to the attainment of their respective objects. We do not judge it possible to enter into minute particulars touching the subject of organization; this must depend on national character, on practice and experience, on the nature and aim of the work to be done, on the scope of the various trades and employments, and on other circumstances of fact and of time - all of which should be carefully considered.