Natural law as a way to achieve the common good: an interpretation of Thomas Aquinas and John Finnis arguments

The paper interprets the arguments of Thomas Aquinas on natural law as a way to achieve the common good, which had a significant impact on John Finnis’ natural law theory. The author reveals the conceptual foundations of J. Finnis’ understanding the morally justified actions of people in the community aimed at the obtaining of basic benefits, and the debatable issues of his theory in modern philosophical and legal research. The author arrives to the conclusion that the reinterpretation of J. Finnis analysis of the grounds for ethically significant actions leads him to formulate an instrumental approach to natural law as a rational way to implement a decent life.