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Casuistry ( ) is a process of
reasoning Reason is the capacity of consciously applying logic by drawing valid conclusions from new or existing information, with the aim of seeking the truth. It is associated with such characteristically human activities as philosophy, religion, scien ...
that seeks to resolve moral problems by extracting or extending abstract rules from a particular case, and reapplying those rules to new instances. This method occurs in
applied ethics Applied ethics is the practical aspect of morality, moral considerations. It is ethics with respect to real-world actions and their moral considerations in private and public life, the professions, health, technology, law, and leadership. For ex ...
and
jurisprudence Jurisprudence, also known as theory of law or philosophy of law, is the examination in a general perspective of what law is and what it ought to be. It investigates issues such as the definition of law; legal validity; legal norms and values ...
. The term is also used
pejorative A pejorative word, phrase, slur, or derogatory term is a word or grammatical form expressing a negative or disrespectful connotation, a low opinion, or a lack of respect toward someone or something. It is also used to express criticism, hosti ...
ly to criticise the use of clever but unsound reasoning, especially in relation to
ethical Ethics is the philosophical study of moral phenomena. Also called moral philosophy, it investigates normative questions about what people ought to do or which behavior is morally right. Its main branches include normative ethics, applied e ...
questions (as in sophistry). It has been defined as follows:
Study of cases of conscience and a method of solving conflicts of obligations by applying general principles of ethics,
religion Religion is a range of social system, social-cultural systems, including designated religious behaviour, behaviors and practices, morals, beliefs, worldviews, religious text, texts, sanctified places, prophecies, ethics in religion, ethics, or ...
, and moral theology to particular and concrete cases of human conduct. This frequently demands an extensive knowledge of
natural law Natural law (, ) is a Philosophy, philosophical and legal theory that posits the existence of a set of inherent laws derived from nature and universal moral principles, which are discoverable through reason. In ethics, natural law theory asserts ...
and equity, civil law, ecclesiastical precepts, and an exceptional skill in interpreting these various norms of conduct....
It remains a common method in
applied ethics Applied ethics is the practical aspect of morality, moral considerations. It is ethics with respect to real-world actions and their moral considerations in private and public life, the professions, health, technology, law, and leadership. For ex ...
.


Etymology

According to the Online Etymological Dictionary, the term and its agent noun "casuist", appearing from about 1600, derive from the
Latin Latin ( or ) is a classical language belonging to the Italic languages, Italic branch of the Indo-European languages. Latin was originally spoken by the Latins (Italic tribe), Latins in Latium (now known as Lazio), the lower Tiber area aroun ...
noun , meaning "case", especially as referring to a "case of conscience". The same source says, "Even in the earliest printed uses the sense was pejorative".


History

Casuistry dates from at least
Aristotle Aristotle (; 384–322 BC) was an Ancient Greek philosophy, Ancient Greek philosopher and polymath. His writings cover a broad range of subjects spanning the natural sciences, philosophy, linguistics, economics, politics, psychology, a ...
(384–322 BC), yet the peak of casuistry was from 1550 to 1650, when the
Society of Jesus The Society of Jesus (; abbreviation: S.J. or SJ), also known as the Jesuit Order or the Jesuits ( ; ), is a religious order of clerics regular of pontifical right for men in the Catholic Church headquartered in Rome. It was founded in 1540 ...
(commonly known as the ''Jesuits'') used case-based reasoning, particularly in administering the
Sacrament of Penance The Sacrament of Penance (also commonly called the Sacrament of Reconciliation or Confession) is one of the seven sacraments of the Catholic Church (known in Eastern Christianity as sacred mysteries), in which the faithful are absolved from si ...
(or "confession"). The term became pejorative following
Blaise Pascal Blaise Pascal (19June 162319August 1662) was a French mathematician, physicist, inventor, philosopher, and Catholic Church, Catholic writer. Pascal was a child prodigy who was educated by his father, a tax collector in Rouen. His earliest ...
's attack on the misuse of the method in his '' Provincial Letters'' (1656–57). The French
mathematician A mathematician is someone who uses an extensive knowledge of mathematics in their work, typically to solve mathematical problems. Mathematicians are concerned with numbers, data, quantity, mathematical structure, structure, space, Mathematica ...
, religious philosopher and
Jansenist Jansenism was a 17th- and 18th-century theological movement within Roman Catholicism, primarily active in France, which arose as an attempt to reconcile the theological concepts of free will and divine grace in response to certain development ...
sympathiser attacked priests who used casuistic reasoning in confession to pacify wealthy church donors. Pascal charged that "remorseful" aristocrats could confess a sin one day, re-commit it the next, then generously donate to the church and return to re-confess their sin, confident that they were being assigned a penance in name only. These criticisms darkened casuistry's reputation in the following centuries. For example, the ''
Oxford English Dictionary The ''Oxford English Dictionary'' (''OED'') is the principal historical dictionary of the English language, published by Oxford University Press (OUP), a University of Oxford publishing house. The dictionary, which published its first editio ...
'' quotes a 1738 essay by Henry St. John, 1st Viscount Bolingbroke to the effect that casuistry "destroys, by distinctions and exceptions, all morality, and effaces the essential difference between right and wrong, good and evil". The 20th century saw a revival of interest in casuistry. In their book ''The Abuse of Casuistry: A History of Moral Reasoning'' (1988), Albert Jonsen and Stephen Toulmin argue that it is not casuistry but its abuse that has been a problem; that, properly used, casuistry is powerful reasoning. Jonsen and Toulmin offer casuistry as a method for compromising the contradictory principles of
moral absolutism Moral absolutism is a metaethics, metaethical view that some or even all action (philosophy), actions are intrinsically right or wrong, regardless of context or consequence. Comparison with other ethical theories Moral absolutism is not the same ...
and
moral relativism Moral relativism or ethical relativism (often reformulated as relativist ethics or relativist morality) is used to describe several Philosophy, philosophical positions concerned with the differences in Morality, moral judgments across different p ...
. In addition, the ethical philosophies of
utilitarianism In ethical philosophy, utilitarianism is a family of normative ethical theories that prescribe actions that maximize happiness and well-being for the affected individuals. In other words, utilitarian ideas encourage actions that lead to the ...
(especially preference utilitarianism) and
pragmatism Pragmatism is a philosophical tradition that views language and thought as tools for prediction, problem solving, and action, rather than describing, representing, or mirroring reality. Pragmatists contend that most philosophical topics� ...
have been identified as employing casuistic reasoning.


Early modernity

The casuistic method was popular among
Catholic The Catholic Church (), also known as the Roman Catholic Church, is the List of Christian denominations by number of members, largest Christian church, with 1.27 to 1.41 billion baptized Catholics Catholic Church by country, worldwid ...
thinkers in the early modern period. Casuistic authors include Antonio Escobar y Mendoza, whose ''Summula casuum conscientiae'' (1627) enjoyed great success, Thomas Sanchez, Vincenzo Filliucci (Jesuit and penitentiary at St Peter's), Antonino Diana,
Paul Laymann Paul Laymann (1574 – 13 November 1635 or 1632Historia Górnego Śląska. Polityka, gospodarka i kultura europejskiego regionu. Christine van Eickels, Sławomir Puk, ) was an Austrian Jesuit and moralist. Biography Laymann was born at ...
(''Theologia Moralis'', 1625), John Azor (''Institutiones Morales'', 1600), Etienne Bauny, Louis Cellot, Valerius Reginaldus, and Hermann Busembaum (d. 1668). The progress of casuistry was interrupted toward the middle of the 17th century by the controversy which arose concerning the doctrine of probabilism, which effectively stated that one could choose to follow a "probable opinion"that is, an opinion supported by a theologian or anothereven if it contradicted a more probable opinion or a quotation from one of the
Fathers of the Church The Church Fathers, Early Church Fathers, Christian Fathers, or Fathers of the Church were ancient and influential Christian theologians and writers who established the intellectual and doctrinal foundations of Christianity. The historical per ...
.
Certain kinds of casuistry were criticised by early Protestant theologians, because it was used to justify many of the abuses that they sought to reform. It was famously attacked by the Catholic and
Jansenist Jansenism was a 17th- and 18th-century theological movement within Roman Catholicism, primarily active in France, which arose as an attempt to reconcile the theological concepts of free will and divine grace in response to certain development ...
philosopher
Blaise Pascal Blaise Pascal (19June 162319August 1662) was a French mathematician, physicist, inventor, philosopher, and Catholic Church, Catholic writer. Pascal was a child prodigy who was educated by his father, a tax collector in Rouen. His earliest ...
during the formulary controversy against the Jesuits, in his Provincial Letters, as the use of rhetorics to justify moral laxity, which became identified by the public with Jesuitism; hence the everyday use of the term to mean complex and
sophist A sophist () was a teacher in ancient Greece in the fifth and fourth centuries BCE. Sophists specialized in one or more subject areas, such as philosophy, rhetoric, music, athletics and mathematics. They taught ''arete'', "virtue" or "excellen ...
ic reasoning to justify moral laxity. By the mid-18th century, "casuistry" had become a synonym for attractive-sounding, but ultimately false, moral reasoning.
In 1679 Pope Innocent XI publicly condemned sixty-five of the more radical propositions (''stricti mentalis''), taken chiefly from the writings of Escobar, Suarez and other casuists as ''propositiones laxorum moralistarum'' and forbade anyone to teach them under penalty of
excommunication Excommunication is an institutional act of religious censure used to deprive, suspend, or limit membership in a religious community or to restrict certain rights within it, in particular those of being in Koinonia, communion with other members o ...
. Despite this condemnation by a pope, both Catholicism and Protestantism permit the use of ambiguous statements in specific circumstances.


Later modernity

G. E. Moore George Edward Moore (4 November 1873 – 24 October 1958) was an English philosopher, who with Bertrand Russell, Ludwig Wittgenstein and earlier Gottlob Frege was among the initiators of analytic philosophy. He and Russell began de-emphasizing ...
dealt with casuistry in chapter 1.4 of his ''
Principia Ethica ''Principia Ethica'' is a book written in 1903 by British philosopher G. E. Moore. Moore questions a fundamental pillar of ethics, specifically what the definition of "good" is. He concludes that "good" is indefinable because any attempts to do ...
'', in which he claimed that "the defects of casuistry are not defects of principle; no objection can be taken to its aim and object. It has failed only because it is far too difficult a subject to be treated adequately in our present state of knowledge". Furthermore, he asserted that "casuistry is the goal of ethical investigation. It cannot be safely attempted at the beginning of our studies, but only at the end". Since the 1960s,
applied ethics Applied ethics is the practical aspect of morality, moral considerations. It is ethics with respect to real-world actions and their moral considerations in private and public life, the professions, health, technology, law, and leadership. For ex ...
has revived the ideas of casuistry in applying moral reasoning to particular cases in
law Law is a set of rules that are created and are enforceable by social or governmental institutions to regulate behavior, with its precise definition a matter of longstanding debate. It has been variously described as a science and as the ar ...
,
bioethics Bioethics is both a field of study and professional practice, interested in ethical issues related to health (primarily focused on the human, but also increasingly includes animal ethics), including those emerging from advances in biology, me ...
, and
business ethics Business ethics (also known as corporate ethics) is a form of applied ethics or professional ethics, that examines ethical principles and moral or ethical problems that can arise in a business environment. It applies to all aspects of business c ...
. Its facility for dealing with situations where rules or values conflict with each other has made it a useful approach in professional ethics, and casuistry's reputation has improved somewhat as a result.
Pope Francis Pope Francis (born Jorge Mario Bergoglio; 17 December 1936 – 21 April 2025) was head of the Catholic Church and sovereign of the Vatican City State from 13 March 2013 until Death and funeral of Pope Francis, his death in 2025. He was the fi ...
, a Jesuit, has criticized casuistry as "the practice of setting general laws on the basis of exceptional cases" in instances where a more holistic approach would be preferred."Pope to meet with sex abuse victims for first time in June", Francis X. Rocca
Catholic News Service. Online.


See also

* * * * * * * * * * * * * *


References


Further reading

* * * * Bliton, Mark J. (1993). The Ethics of Clinical Ethics Consultation: On the Way to Clinical Philosophy (Diss. Vanderbilt) * * * * * * Carney, Bridget Mary. (1993). Modern Casuistry: An Essential But Incomplete Method for Clinical Ethical Decision-Making. (Diss., Graduate Theological Union). * * Carson, Ronald A. (1988). "Paul Ramsey, Principled Protestant Casuist: A Retrospective." Medical Humanities Review, Vol. 2, pp. 24–35. * Chidwick, Paula Marjorie (1994). Approaches to Clinical Ethical Decision-Making: Ethical Theory, Casuistry and Consultation. (Diss., U of Guelph) * * * * Drane, J.F. (1990). "Methodologies for Clinical Ethics." Bulletin of the Pan American Health Organization, Vol. 24, pp. 394–404. * Dworkin, R.B. (1994). "Emerging Paradigms in Bioethics: Symposium." Indiana Law Journal, Vol. 69, pp. 945–1122. * Elliot, Carl (1992). "Solving the Doctor's Dilemma?" New Scientist, Vol. 133, pp. 42–43. * Emanuel, Ezekiel J. (1991). The Ends of Human Life: Medical Ethics in a Liberal Polity (Cambridge). * Franklin, James (2001). The Science of Conjecture: Evidence and Probability Before Pascal (Johns Hopkins), ch. 4. * Gallagher, Lowell (1991). Medusa's Gaze: Casuistry and Conscience in the Renaissance (Stanford) * * Green, Bryan S. (1988). Literary Methods and Sociological Theory: Case Studies of Simmel and Weber (Albany) * * Houle, Martha Marie (1983). The Fictions of Casuistry and Pascal's Jesuit in "Les Provinciales" (Diss. U California, San Diego) * * * * * Jonsen, Albert R. (1986). "Casuistry" in J.F. Childress and J. Macgvarrie, eds. Westminster Dictionary of Christian Ethics (Philadelphia) * * * Jonsen, Albert R. and Stephen Toulmin (1988). The Abuse of Casuistry: A History of Moral Reasoning (California). * Keenan, James F., S.J. and Thomas A. Shannon. (1995). The Context of Casuistry (Washington). * Kirk, K. (1936). Conscience and Its Problems, An Introduction to Casuistry (London) * * * * * Kuczewski, Mark G. (1994). Fragmentation and Consensus in Contemporary Neo-Aristotelian Ethics: A Study in Communitarianism and Casuistry (Diss., Duquesne U). * * * Long, Edward LeRoy, junior (1954). Conscience and Compromise: an Approach to Protestant Casuistry (Philadelphia, Penn.: Westminster Press) * * * Mackler, Aaron Leonard. Cases of Judgments in Ethical Reasoning: An Appraisal of Contemporary Casuistry and Holistic Model for the Mutual Support of Norms and Case Judgments (Diss., Georgetown U). * * * McCready, Amy R. (1992). "Milton's Casuistry: The Case of 'The Doctrine and Discipline of Divorce.' " Journal of Medieval and Renaissance Studies, Vol. 22, pp. 393–428. * * * * Odozor, Paulinus Ikechukwu (1989). Richard A. McCormick and Casuistry: Moral Decision-Making in Conflict Situations (M.A. Thesis, St. Michael's College). * Pack, Rolland W. (1988). Case Studies and Moral Conclusions: The Philosophical Use of Case Studies in Biomedical Ethics (Diss., Georgetown U). * Pascal, Blaise (1967). The Provincial Letters (London). * * Río Parra, Elena del (2008). Cartografías de la conciencia española en la Edad de Oro (Mexico). * * Seiden, Melvin (1990). Measure for Measure: Casuistry and Artistry (Washington). * * * Smith, David H. (1991). "Stories, Values, and Patient Care Decisions." in Charles Conrad, ed. The Ethical Nexus: Values in Organizational Decision Making. (New Jersey). * * * Starr, G. (1971). Defoe and Casuistry (Princeton). * * Tallmon, James Michael (2001). "Casuistry" in The Encyclopedia of Rhetoric. Ed. Thomas O. Sloane. New York: Oxford University Press, pp. 83–88. * Tallmon, James Michael (1993). Casuistry and the Quest for Rhetorical Reason: Conceptualizing a Method of Shared Moral Inquiry (Diss., U of Washington). * * Taylor, Richard (1984). Good and Evil – A New Direction: A Foreceful Attack on the Rationalist Tradition in Ethics (Buffalo). * * * * Toulmin, Stephen (1988). "The Recovery of Practical Philosophy." The American Scholar, Vol. 57, pp. 337–352. * * * * * Weinstein, Bruce David (1989). The Possibility of Ethical Expertise (Diss. Georgetown U). * * * Wildes, Kevin Wm., S.J. (1993). The View for Somewhere: Moral Judgment in Bioethics (Diss. Rice U). * * Zacker, David J. (1991). Reflection and Particulars: Does Casuistry Offer Us Stable Beliefs About Ethics? (M.A. Thesis, Western Michigan U). *


External links


''Dictionary of the History of Ideas''
"Casuistry"

article on how modern compliance regimes in accountancy and law apply casuistry







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