Purpose: The purpose of this paper is to reconstruct and interpret the management concepts developed by Prof. Marcin Staniewski through an integrated epistemological, anthropological, and ethical lens. The study aims to demonstrate how knowledge management, entrepreneurship, and sustainability form a coherent hermeneutic framework in which management is understood as a moral and meaning-oriented practice rather than a purely technical activity. Design/Methodology/Approach: The study employs a qualitative, interpretative research approach based on hermeneutic analysis of Prof. Staniewski’s selected monographs and peer-reviewed articles published between 2007 and 2025. The analysis is grounded in philosophical hermeneutics (Gadamer, Ricoeur), humanistic management theory, and contemporary epistemology of organisational knowledge. Comparative conceptual analysis is used to situate Staniewski’s thought within international management and ethics literature. Findings: The findings reveal a coherent intellectual trajectory in Staniewski’s work: from knowledge management understood as a hermeneutic and participatory process, through an anthropological conception of entrepreneurship rooted in hope, responsibility, and relationality, to a mature vision of sustainable management based on ethical organisational intelligence. His approach integrates cognition, values, and action, redefining management as a form of practical wisdom (phronesis) oriented toward the common good. Practical Implications: The paper provides managers and scholars with a conceptual framework for integrating ethics, knowledge, and sustainability into organisational practice. It highlights the importance of ethical intelligence, dialogical leadership, and value-based decision-making in environments characterised by uncertainty and ecological responsibility. Originality/Value: This study offers the first comprehensive and systematic synthesis of Prof. Staniewski’s management thought as an integral hermeneutic project. It contributes to the literature by bridging management theory, ethics, and theological anthropology, proposing a model of management as a hermeneutics of the common good.