Lex iniusta non est lex
Lex iniusta lex non est (English: An unjust law is no law at all), is a standard legal maxim.
Originating with St. Augustine, the motto was used by St. Thomas Aquinas and quoted by Martin Luther King Jr. during the Civil Rights Movement to describe racial segregation and discrimination against African Americans.
- The Encyclopedia of language and linguistics, Volume 4
- Norman Kretzmann, Lex Iniusta Non Est Lex: Laws on Trial in Aquinas' Court of Conscience, 33 Am. J. Juris. 99 (1988). Thomas Aquinas, Summa Theologiae I-II, q. 96, a. 4, c.
- "Letter from a Birmingham Jail [King, Jr.]". www.africa.upenn.edu.
- Brian Bix, "Jurisprudence: Theory and Context", (Sweet&Maxwell 2009) 70
- Law and Morality, Edited by Kenneth Einar Himma, Seattle Pacific University, U.S. and Brian Bix, University of Minnesota, U.S.
- Philosophical theory and the Universal Declaration of Human Rights, William Sweet (ed.).