Others deal with the problem of objectionable materials by instituting restrictive circulation or relegating materials to closed or restricted collections. The distinction is extremely difficult to make, both for the librarian and the patron. Intellectual freedom, in its purest sense, promotes no causes, furthers no movements, and favors no viewpoints. It only provides for free access to all ideas through which any and all sides of causes and movements may be expressed, discussed and argued. The librarian cannot let his own prefrenees limit his degree of tolerance, for freedom is indivisible.
Toleration is meaningless without toleration for the detestable.