The opening of this work presents the foundational beliefs of the "Association pour la liberté des échanges" (Association for the Freedom of Exchanges), where members declare their commitment to free trade as a natural right akin to property ownership. Bastiat emphasizes that any restriction on exchanges leads to oppression and injustice, arguing that such limitations not only hinder individual liberties but also obstruct societal harmony and prosperity. He critiques protective measures that would benefit certain classes at the expense of the public and underscores the importance of spreading the principle of free exchange as a means to achieve collective well-being and peace among nations. (This is an automatically generated summary.)