Philosophy of law in the context of "Constitutional theory"

Jeremy Bentham (/ˈbɛnθəm/; 4 February 1747/8 O.S. [15 February 1748 N.S.] – 6 June 1832) was an English philosopher, jurist, and social reformer regarded as the founder of modern utilitarianism.

Bentham defined as the "fundamental axiom" of his philosophy the principle that "it is the greatest happiness of the greatest number that is the measure of right and wrong". He became a leading theorist in Anglo-American philosophy of law, and a political radical whose ideas influenced the development of welfarism. He advocated individual and economic freedoms, the separation of church and state, freedom of expression, equal rights for women, the right to divorce, and (in an unpublished essay) the decriminalizing of homosexual acts. He called for the abolition of slavery, capital punishment, and physical punishment, including that of children. He has also become known as an early advocate of animal rights. Though strongly in favour of the extension of individual legal rights, he opposed the idea of natural law and natural rights (both of which are considered "divine" or "God-given" in origin), calling them "nonsense upon stilts". However, he viewed the Magna Carta as important, citing it to argue that the treatment of convicts in Australia was unlawful. Bentham was also a sharp critic of legal fictions.

John Mitchell Finnis AC CBE KC (Hon) FBA (born 28 July 1940) is an Australian legal philosopher and jurist specializing in jurisprudence and the philosophy of law. He is an original interpreter of Aristotle and Aquinas, and counts Germain Grisez as a major influence and collaborator. He has made contributions to epistemology, metaphysics, and moral philosophy.

Finnis was Professor of Law and Legal Philosophy at the University of Oxford from 1989 to 2010, where he is now Professor of Law and Legal Philosophy Emeritus. He is also the Biolchini Family Professor of Law, emeritus, at Notre Dame Law School and a permanent senior distinguished research fellow at Notre Dame's de Nicola Center for Ethics and Culture. He acted as adviser to several Australian State governments, especially Queensland and Western Australia, mostly on the States' relations with the federal Government and with the United Kingdom.

Joseph Raz FBA (/rɑːz/; Hebrew: יוסף רז; born Joseph Zaltsman; 21 March 1939 – 2 May 2022) was an Israeli legal, moral and political philosopher. He was an advocate of legal positivism and is known for his conception of perfectionist liberalism. Raz spent most of his career as a professor of philosophy of law at Balliol College, Oxford, and was latterly a part-time professor of law at Columbia University Law School and a part-time professor at King's College London. He received the Tang Prize in Rule of Law in 2018.

In the United States, strict constructionism is a particular legal philosophy of judicial interpretation that limits or restricts the powers of the federal government only to those expressly, i.e., explicitly and clearly, granted to the government by the United States Constitution. While commonly confused with textualism or originalism, they are not the same, and in fact frequently contradict, as textualists like Antonin Scalia have noted.

Treatise on Law is Thomas Aquinas' major work of legal philosophy. It forms questions 90–108 of the Prima Secundæ ("First [Part] of the Second [Part]") of the Summa Theologiæ, Aquinas' masterwork of Scholastic philosophical theology. Along with Aristotelianism, it forms the basis not only for the legal theory of Catholic canon law, but provides a model for natural law theories generally.