Natural law ethicists

Aristotle (; 384–322 BC) was an ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, and the arts. As the founder of the Peripatetic school of philosophy in the Lyceum in Athens, he began the wider Aristotelian tradition that followed, which set the groundwork for the development of modern science.

German philosopher (1724-1804)

Christian theologian, philosopher, and saint (354–430)

Italian Dominican friar, philosopher, Catholic priest, and Doctor of the Church (1225–1274)

English philosopher and physician (1632-1704)

Marcus Tullius Cicero ( , ; 3 January 106 BC – 7 December 43 BC) was a Roman statesman, lawyer, scholar, philosopher, orator, and writer who tried to uphold principles during the political crises of the Roman Republic that led to the establishment of the Roman Empire. The extensive writings of Cicero include treatises on rhetoric, philosophy, and politics. He is considered one of Rome's greatest orators and prose stylists and the innovator of what became known as "Ciceronian rhetoric". Cicero was educated in Rome and in Greece. He came from a wealthy municipal () family of the Roman

English philosopher (1588–1679)

Desiderius Erasmus Roterodamus ( ; ; 28 October c. 1466 – 12 July 1536), commonly known in English as Erasmus of Rotterdam or simply Erasmus, was a Dutch humanist, Christian theologian, and pioneering philologist and educationalist. He was, through his writings and translations, one of the most influential scholars of the Northern Renaissance and a major figure of Western culture.

Russian-born American writer and public philosopher (1905–1982)

Anglo-Irish statesman, political theorist and conservative philosopher (1729–1797)

French political thinker and historian, minister of Foreign Affairs (1805-1859)

German-Dominican friar and saint (c. 1200–1280)

Dutch jurist and scholar (1583-1645)

French classical liberal theorist, political economist, and member of the French assembly (1801-1850)

French-Swiss politician, writer on politics and religion (1767-1830)

French economist

American political philosopher (1938–2002)

French economist and statesman (1727–1781)

American economist (1926–1995)

British politician and historian (1834–1902)

History of Political Philosophy scholar (1899-1973)

English jurist, judge and Tory politician (1723-1780)

American legal philosopher (1931-2013)

Spanish philosopher

German philosopher (1632–1694)

American political philosopher, essayist, pamphlet writer, Unitarian, abolitionist, individualist anarchist, legal theorist, a member of the socialist First International and entrepreneur of the 19th century (1808–1887)

Australian legal scholar and philosopher

American anarchist (1947–2004)

American legal scholar

American professor of philosophy

English philosopher, and Bishop of Peterborough (1631–1718)

Austrian jurist and diplomat (1890–1980)

American libertarian businessman (1911–1986)

Canadian philosopher

American writer (1929–2010)

French philosopher (1903–1961)