The essay constitutes a reflection/comparison with Massimo D'Antona's ideas on the subject and labour law, starting from the reflections of the great jurist - presented in three essays, published in the last century - on individual autonomy and the contract. After having retraced and reconstructed D'Antona's path, noting the originality and predictive scope of his theses, the author tries to dialogue with D'Antona on the current perspectives of the subject and the centrality of the person in labour law. Some hypotheses are formulated on the subject of labour law, which today should be declined in the plural, including not only the subordinate worker, but workers in all "forms" (art. 35 of the Constitution) and among these also the entrepreneur. With regard to the company and its law, the author hopes for a dialogue with labour law, and a regulatory integration between the two regulatory systems under the banner of the paradigm of sustainability.