Which ideas from Oliver Wendell Holmes, Jr.’s lecture The Path of the Law influenced legal realism?

Oliver Wendell Holmes, Jr. is widely considered the founding figure of American legal realism. His influential 1897 lecture, "The Path of the Law," introduced several core themes that became central to the realist movement:1

• Separation of Law and Morality: Holmes emphasized the distinction between legal rules and moral considerations, a concept that aligns with legal positivism.1
• Legal Indeterminacy: He argued that the law is often indeterminate in its application, meaning that existing legal sources—such as statutes and precedents—do not always dictate a single, clear outcome for a case.1
• Nonlegal Influences: Holmes expressed the suspicion that judges are frequently influenced by factors outside of the law itself, such as their personal views on economic policy or fairness, rather than relying solely on formal legal reasoning.1

These ideas provided the foundation for later realists, such as Karl Llewellyn, to further explore how social, political, and commercial norms shape judicial decision making.1