---
title: PERELMAN Chaïm (1912-1984)
author: Benoit Frydman
language: fr
date: 2020
canonical_url: https://benoitfrydman.com/fr/chapitre-douvrage/2020-perelman-chaim-1912-1984/
doi: 10.1007/978-94-007-6730-0_786-1
pdf_url: https://benoitfrydman.com/assets/pdf/frydman-b-2020-perelman-chaim-1912-1984-edition.pdf
note: The published version is authoritative (la version publiée fait foi). This Markdown
  edition is provided for machine reading and citation; it is not itself the version
  of record.
---

Chaïm Perelman is a major figure of legal and moral philosophy of the
second part of the 20th century. The leader of the Brussels
School, he is best known as the founder of the "New Rhetoric" for having
initiated the contemporary argumentative turn in philosophy, law and
social sciences. He emphasized the argumentative nature, the
epistemological value and the various techniques of the practical
reasoning in general and the judicial reasoning in particular.

*Education*

Perelman was born in 1912 in Warsaw Poland within a Jewish family of
merchants. In 1925, his family moved to Antwerp Belgium. He received a
secular education at Antwerp's high school, where he met his lifelong
friends and future colleagues Henri Buch and René Dekkers. The three of
them studied law at the Université Libre de Bruxelles (ULB). Perelman
graduated *Juris Doctor* in 1934. At the same time, he also studied
philosophy under the supervision of notably Eugène Dupréel « _the
leader of the Brussels School and the most eminent of Belgian
thinkers_ », according to the _Biographical Dictionary of
Twentieth-Century Philosophers_ (Routledge, 1996). Perelman's masters
noticed the outstanding intelligence and talents of this extraordinary
student and determined that he should become one of their own. In 1936,
Perelman became a Belgian citizen. He also obtained a grant to study
formal logic at the School of Logic of the University of Warsaw. Two
years later, he was awarded a PhD at ULB with a dissertation on Gottlob
Frege. He was appointed lecturer in philosophy at ULB but not for long.
In 1940, he was forbidden, as a Jew, to teach and he resigned his
position. The Nazis regarded the ULB faculty as a bunch of free masons,
Jews and communists and had decided to transform it as a model of Third
Reich University in Europe. However, the board of ULB derailed the
project by closing the doors of the University from 1941 to the end of
the German occupation. In the meantime, Perelman joined the Résistance
and participate to the founding of the Comité de Défense des Juifs
(CDJ). His wife Fela, an historian, played an important role in the
saving of about 4.000 Jewish children placed in educational facilities
and ordinary families.

*The logic of justice*

In 1945, Perelman was appointed ordinary professor and succeeded Dupréel
when he retired in 1947. Perelman as well his colleagues were profoundly
shocked by the crimes and atrocities committed by the Nazis. They
rejected the positivistic view that any order given by the political
authority in accordance with the procedure was legally binding and
should be obeyed. As soon as 1945, Perelman published an essay _on
Justice_, where he tried to find the logical structure of justice.
Starting from the ancient Roman definition of justice as _suum cui
tribuere_, Perelman distinguished the multiplicity of criteria promoted
by competing communities of values in order to materialize the formula.
Does-it mean to attribute the same thing to everybody or should one
consider the needs, the merits or the status of the various members of
the community? Or, last but not least in a positivistic era, was the
formula to be understood as giving to each one whatever portion
determined by the applicable rules? However Perelman soon realized that
this path was a dead-end. There was no way to decide in principle which
criterium was the best. Similarly, it appeared impossible to agree,
within a pluralistic community, as a matter of principle, on a certain
order of preferences that should apply on each and every case.
Nevertheless, Perelman noticed that, when considering in a particular
case at hand, what justice would require, the competing values would
provide different and contradictory solutions. Some of them would be
considered more convincing or more reasonable than others. The way in
which the abstract criteria or values were to be applied in the case at
hand in order to provide the best answer, i.e. a fairer solution, was
not the result of a formal deduction but rather formulated as an
argument.

*The rehabilitation of rhetoric*

From then on, Perelman deserted the arid fields of formal logic that he
regarded as almost useless in practical matters such as morals and law.
Turning his back to formal logic, he immerged himself in the luxuriant
jungle of rhetoric, following the steps of his master Dupréel. After
World War I, Dupréel had undertaken the difficult task of rehabilitating
the Sophists, who had been most severely condemned and despised by
philosophers during more than 2.300 years. Dupréel's primary interest
was in pluralistic societies, meaning societies made of competing groups
owning their own sets of values and interests such as Western
contemporary democracies. He wanted to understand how collective values
that could serve as grounds for collective action and democratic
deliberations could be constructed in such a context and evolve over
time. From the Sophists, he borrowed some useful notions like the value
of artificial conventions and the usefulness of fuzzy concepts. With
them, he shared a pluralistic view of moral and epistemology, from which
he developed a constructive theory of values, that looks quite similar
to the one of his American counterpart, the pragmatist philosopher John
Dewey.

*The Treatise on Argumentation*

From 1949, Perelman engaged in the next steps with Lucie
Olbrechts-Tyteca, another Dupréel's disciple. They collected a very
extensive corpus of political, literary, philosophical works, discourses
as well as press articles and scrutinized them meticulously in order to
exhume a contemporary topic of arguments that they presented in a
systematic classification in their _Treatise of Argumentation. New
Rhetoric_ (1958). The treatise was an immediate success. He was
translated in many languages and started Perelman's international
career. This book is generally seen has having contributed to launch the
argumentative turn in philosophy and in law, along with Viehweg's
*Topik und Jurisprudenz* (1953) and Toulmin's _The Uses of
Argument_ (1958).

*The Seminar on Legal Logic*

Simultaneously, Perelman founded in 1953, along with his lawyer friends
Buch and Dekkers, the legal section of the Belgian National Center for
Research in Logic (CNRL), which Perelman chaired during 30 years, until
his dead. The regular contributors were both Professors at the ULB and
justices as well as prosecutors from the two supreme courts coexisting
in Belgium at this time: the Cour de Cassation and the Conseil d'Etat.
This group was commonly referred to as "The School of Brussels" in the
fields of jurisprudence and philosophy of law. They were joined by
dozens foreign law professors and legal philosophers. Together they
studied a range of tools mobilized by judges in the motives of their
rulings. The caselaw material included both Belgian, foreign, European
and international courts decisions. As a result, Perelman published,
partially with Paul Foriers, eight books of collective works on
*Facts and Law* (1961), *Antinomies* (1965), *Loopholes*
(1968), *Legal Rules* (1971), *Presumptions and Fictions*
(1974), *Motives of Court Rulings* (1978), *Proof* (1981) and
*Fuzzy Concepts* (1984) in law. In addition, Perelman published a
monography summarizing his views on the subject : _Legal Logic. The
New Rhetoric_ (1976).

*Facts and Rules*

According to Perelman, the figure of syllogism, traditionally used on
the continent to formalize the correct reasoning of the judge, where the
major premise states the law, the minor states the facts and the
conclusion is logically deduced from them both, is unacceptable. It
conceals the difficulties that should be explained: 1° how are the
premises construed; 2° where and how the facts and the rules are brought
together by the legal characterization of facts. Moreover, the Brussels
School does not abide by Hume's law and denies the possibility of a
complete separation between *Sein und* *Sollen*. Norms and
values on the one hand and facts or reality on the other cannot and
should not be severed from one another, no more than theory and
practice. Rules as well as facts are constructions made of mixed
materials. The rule discovered by the judge is partially derived from
the facts, which themselves are characterized by the rules.

*From formal logic to argumentation*

Antinomies and loopholes are no defects of a legal system, exposing its
inconsistency or incompleteness that need to be eradicated by abstract
metarules. Rather, when judges acknowledge the existence of an antinomy
or a loophole, they create for themselves a possibility to add an
element to the ongoing collective construction of the law in order to
solve the case at hand. The tools and resources they use to build the
law and to apply it to a case do not derive from logic. They are
arguments, that would be contradicted by other arguments, and provide
more or less convincing grounds for a correct and reasonable ruling. The
audiences to be persuaded are plural and vary in their scope. The
litigants need to convince the judge. The judge himself argues in his
motives in order to persuade the parties, especially the one who loses
the case, the courts that would potentially review his ruling, and in
some cases the scientific community of lawyers who discuss its merits or
even the general public in major or sensitive cases and sometimes at
last the "universal audience" which is, according to Perelman, the final
audience of philosophers.

*Rebuttal of the "no right answer" theory*

Perelman absolutely rejects the positivist epistemology which separate,
on the one hand, issues of facts and reality judgments who are the realm
of science from, on the other hand, issues of morals and value
judgments, which cannot be dealt with scientifically and are subject to
arbitrariness and subjective preferences. Such conception produces
terrible consequences by denying any possibility to reason in practical
matters, who are most important for the sake of the human kind and the
world, such as moral, political, legal as well as social issues,
decisions and choices. Perelman refuses the impossible dilemma between
logical reason and complete irrationality. Argumentation is the way of
reasoning appropriate to discuss and to make decisions in practical
matters. "It is the logic of action".

Discussing Hart's very famous hard case example "_no vehicle in the
park_", Perelman rebuts the idea that hard cases are borderline cases to
which our conventions provide no answer and that should be left to the
discretion of the judge. Giving the example of an ambulance or a cab
entering the park in order to collect a person who feels ill, Perelman
shows that hard cases are indeed central cases when the real issue is a
choice between competing values that contribute to reveal and to
complete the meaning of the rules to be applied.

*Enforcement of the rule of law*

The various kinds of argument used by judges in the justification of
their rulings make part of a toolbox that is needed to construct the law
and to make it effective. In this task, judges mobilize not only what
Perelman calls "rules in uniform" but also "guerilla norms", i.e.
unofficial norms, which are not enacted according to primary rules but
nevertheless play an important role in the fight for law and justice.
Among these, general principles, norms and fundamental rights are of
capital importance, although they are only effective insofar that they
find their way to infiltrate the layers of the legal orders. Rejecting
the frontal confrontation between positivism and jusnaturalism (another
replication of the misleading separation between reality and ideals,
facts and values), the Brussels School invented the oxymoron "natural
positivist law" (*droit naturel positif*) to capture the dynamics
of these norms progressively integrating (or, at the contrary, being
excluded from) the law and leading its further evolution. More
practically, professors and judges from the Brussels School committed
themselves very hardly to this task, by promoting and sometimes enacting
themselves some bold court rulings and judicial reversals, contributing
to improve significantly the rule of law in Belgium and sometimes in
Europe.

*Posterity*

The field of argumentation reopened by Perelman and some others has been
growing ever since. Legal argumentation has become a specific branch of
jurisprudence. Argumentation plays an important role in contemporary
linguistics and pragmatics. The analysis of discourses is a method
largely practiced and recognized in social sciences. More specifically,
Gadamer refered to Perelman's judicial model of reasoning in his major
work *Truth and Method*, which mutated the argumentative turn into
an interpretative turn. The famous debate between Gadamer and Habermas,
stressing the importance of both tradition and critique in deciding
practical issues, whose results were integrated by Dworkin and his
famous "chain novel" in *Law's Empire* had a significant influence
in political and legal philosophy in the end of the 20th
century. Finally, at a time when democracy and the rule of law are one
more time clearly under attack, Perelman's conception of the law as a
battle to fight case after case so that principles of justice and the
rule of law would prevail remains a strong inspiration for the current
and hopefully future generations.

*Bibliography :*

*Primary Sources :*

- Perelman, Ch. (1945), *De la Justice*, ULB, Institut de
  Sociologie Solvay.

- Perelman, Ch. & Olbrechts-Tyteca, L. (1952), _Rhétorique et
  philosophie._ Pour une théorie de l'argumentation en philosophie,
  P.U.F.

- Perelman, Ch. & Olbrechts-Tyteca, L. (1958), _Traité de
  l'argumentation_. La nouvelle rhétorique, P.U.F., 2 vol.

- Perelman, Ch. ed. (1961), *La distinction du fait et du droit,*
  Bruylant.

- Perelman, Ch. (1963), *Justice et raison*, Presses Universitaires
  de Bruxelles.

- Perelman, Ch. (1963-2), _The Idea of Justice and the Problem of
  Argument_, Routledge & Kegan Paul.

- Perelman, Ch. (1965), _An Historical Introduction to
  Philosophical Thinking_, Random House.

- Perelman, Ch. ed. (1965-2), *Les antinomies en droit*, Bruylant.

- Perelman, Ch. & Olbrechts-Tyteca, L. (1968), _The New Rhetoric. A
  Treatise of Argumentation_, Notre-Dame Press.

- Perelman, Ch. ed. (1968-2), *Le problème des lacunes en droit*,
  Bruylant.

- Perelman, Ch. ed. (1971), *La règle de droit*, Bruylant.

- Perelman, Ch. & Foriers, P. eds. (1974), *Les* _présomptions
  et les fictions en droit_, Bruylant.

- Perelman, Ch. (1976), *Droit, morale et philosophie*, L.G.D.J.,
  2ème édition augmentée.

- Perelman, Ch. (1976-2), *Logique juridique. Nouvelle rhétorique*,
  Dalloz, 2ème édition revue.

- Perelman, Ch. (1977), _L'empire rhétorique. Rhétorique et
  argumentation_, Vrin.

- Perelman, Ch. & Foriers, P. eds. (1978), _La motivation des
  décisions de justice_, Bruylant.

- Perelman, Ch. (1979), _The new Rhetoric and the Humanities,
  Essays on Rhetoric and its applications_, Reidel.

- Perelman, Ch. (1980), _Justice, Law and Argument, Essays on Moral
  and Legal Reasoning_, Reidel.

- Perelman, Ch. & Foriers, P. eds. (1981), *La preuve en droit*,
  Bruylant.

- Perelman, Ch. (1982), *The Realm of Rhetoric*, U. of Notre-Dame
  Press.

- Perelman, Ch. (1984), _Le raisonnable et le déraisonnable en
  droit. Au-delà du positivisme juridique_, L.G.D.J.

- Perelman, Ch. & Vander Elst, R. (1984-2), _Les notions à contenu
  variable en droit_, Bruylant.



> *Secondary Sources :*



- Bobbio, N. (2001), "Perelman et Kelsen", *Droits*, 165-180,
  translated by Mercer, A.

- Frydman, B & Lewkowicz, G. eds. (2021), _Le droit selon l'École
  de Bruxelles_, Presses Universitaires de Bruxelles.

- Frydman, B. & Meyer, M. eds. (2012), _Chaïm Perelman
  (1912-2012)._ De la nouvelle rhétorique à la logique juridique,
  Presses Universitaires de France.

- Goltzberg, St. (2013), _Chaïm Perelman. L'argumentation
  juridique,_ Michalon.

- Gross A. & Dearin R. (2003), *Chaïm Perelman*, State University
  of New-York Press.

- Guerini, J.-Cl. (2019), _Les valeurs dans l'argumentation.
  L'héritage de Chaïm Perelman_, Garnier.

- Haarscher, G. ed. (1994), _Chaïm Perelman et la pensée
  contemporaine_, Bruylant.

- Maneli, M. (1993), _Perelman's New Rhetoric as Philosophy and
  Methodology for the Next Century_, Springer.

- Vannier, G. (2001), _Argumentation et droit. Introduction à la
  Nouvelle Rhétorique de Perelman_, Presses Universitaires de France.

