Creation and enjoyment: the legal interests in intellectual production. The production system for intellectual creations. The assumptions of intellectual creation: originator and creation. The legal status of the originator. The legal status of creations not objectified. The maintenance of the ideas in a non-appropriated status. The opposition between mysticum corpus and corpus mechanicum. The intangible property before the property. The autonomy of creation in face of the creator. Assumptions of intangible property outside the property. The historicity of the transformation of intangible property in competition. Intellectual creation out of the market economy. The intellectual production without artificial inductors.A key concept: the Intellectual property is just one way to encourage intellectual production. Market-oriented intellectual creation . The drug and its side effects. The right holder-centered and the right centered on the work. A terseconclusion