Please use those references
“Summa Theologica” by Thomas Aquinas – Aquinas extensively discusses natural law and its
relation to divine law and human conduct in this seminal work of Christian theology.
“On Law, Morality, and Politics” by Thomas Aquinas – This collection of Aquinas’ writings
includes discussions on natural law theory and its implications for ethics and governance.
“Natural Law and Natural Rights” by John Finnis – Finnis provides a contemporary analysis
of natural law theory, drawing on Aquinas’ insights and addressing its relevance in modern
jurisprudence.
“The Natural Law Tradition in Ethics” edited by John Dionysius Lennard – This anthology
offers a comprehensive overview of the natural law tradition, including Aquinas’ contributions
and its evolution over time.
“Aquinas: A Beginner’s Guide” by Edward Feser – Feser provides an accessible introduction
to Aquinas’ philosophy, including his understanding of natural law and its significance in moral
reasoning and social order.