This paper aims to bridge the gap between legal philosophy and modern legal practice by examining the concepts of ownership and liability. We will explore how the philosophical foundations of these concepts have shaped contemporary legal systems and discuss how modern law applies them in the context of current societal issues. By investigating both the historical evolution of these principles and their modern-day applications, we will illuminate the ongoing challenges and opportunities for reconciling legal theory with practical realities. In doing so, this paper seeks to offer a comprehensive understanding of ownership and liability in both their philosophical and practical dimensions, providing insight into how these concepts continue to shape the legal landscape today.