Towards transdisciplinary education

�
TD, 1 (1), December 200�, pp.�-16

Towards transdisciplinary education

BasaraB Nicolescu� 

Abstract. The methodology of transdisciplinarity is founded on three postulates: 
there are, in Nature and in our knowledge of Nature, different levels of Reality and, 
correspondingly, different levels of perception; the passage from one level of Reality 
to another is insured by the logic of the included middle; and the structure of the 
totality of levels of Reality or perception is a complex structure: every level is what 
it is because all the levels exist at the same time. After giving an exposition of these 
postulates the author contends that transdisciplinarity does not rest on a transfer 
from modern science. Instead, modern science, via its most general aspects, makes 
it possible to identify the postulates of transdisciplinarity. However, once they are 
formulated they have a much wider validity then in modern science itself, namely 
they could be applied in the field of education and culture.

It is argued that transdisciplinary education, founded on the transdisciplinary 
methodology, will allow scientists to establish links between persons, facts, images, 

representations, fields of knowledge and action.

Keywords. Transdisciplinarity, in vitro and in vivo knowledge, axiom of the in-
cluded middle, transdisciplinary education.

1. Multi, inter and transdisciplinarity
The process of the decline of civilizations is one of enormous complex-
ity and its roots lie deep in obscurity. Of course, one can find multiple 
after-the-fact explanations and rationalisations without ever success-
fully dissipating the feeling that there is an irrational element at work 
at the heart of the process. Neither the masses nor great decision 
makers, as actors in a well-defined civilisation, seem able to stop the 
decline of their civilization, even if they become more or less aware of 
the processes at work. 

One thing is certain: this fall is always accompanied by a great unbal-
ance between the mentalities of the actors and the inner developmen-
tal needs of a particular type of society. Although a civilization never 
stops proliferating new knowledge, it is as if these can never be fully 

1 Theoretical physicist at CNRS, University Paris VI. Member of the Romanian 
Academy. President of the International Center for Transdisciplinary Research and 
Studies (CIRET).

TD: The Journal for Transdisciplinary Research in Southern Africa, Vol. 1 nr. 1, December 200� pp. �-16



Nicolescu

6

integrated within those who belong to this civilization. And it is the hu-
man being who must be placed at the centre of any civilization worthy of 
the name. 

The unprecedented increase of knowledge in our era raises the challeng-
ing question of how to adapt our mentality to being. Mondialisation is 
today a potential source of a new decline. The two extreme dangers of 
mondialisation are, on one side, the cultural and spiritual homogenisa-
tion and, on another side, the paroxysm of ethnical and religious con-
flicts, as a self-defence reaction of different cultures and civilisations.

Harmony between inner being and outer knowledge presupposes that 
these known facts would be intelligible, comprehensible. But can such 
comprehension exist in the era of the disciplinary big bang and relentless 
specialization? 

The indispensable need for bridges between the different disciplines is 
attested to by the emergence of multidisciplinarity and interdisciplinarity 
around the middle of the twentieth century. 

Multidisciplinarity concerns studying a research topic not in just one dis-
cipline but in several at the same time. For example, a painting by Giotto 
can be studied not only within the context of art history, but also within 
the contexts of the history of religions, European history, or geometry. 
The topic in question will ultimately be enriched by incorporating the per-
spectives of several disciplines. Moreover, our understanding of the topic 
in terms of its own discipline is deepened by a fertile multidisciplinary 
approach. Multidisciplinarity brings a plus to the discipline in question 
(the history of art in our example), but we must remember that this “plus” 
is always in the exclusive service of the home discipline. In other words, 
the multidisciplinary approach overflows disciplinary boundaries while 
its goal remains limited to the framework of disciplinary research.

Interdisciplinarity has a different goal than multidisciplinarity. It concerns 
the transfer of methods from one discipline to another. One can distin-
guish three degrees of interdisciplinarity: (a) degree of application (for 
example, when the methods of nuclear physics are transferred to medi-
cine, which leads to the appearance of new treatments for cancer); (b) 
epistemological degree (such as, transferring methods of formal logic to 
the area of general law, which generates some interesting analyses of 
the epistemology of law); (c) degree of the generation of new disciplines 
(when methods from mathematics are transferred to physics, generating 
mathematical physics, or when mathematical methods are transferred to 
meteorological phenomena or stock market processes, generating chaos 
theory; transferring methods from particle physics to astrophysics pro-
duces quantum cosmology. Like multidisciplinarity, interdisciplinarity 
overflows the disciplines, but its goal still remains within the framework 
of disciplinary research.



Towards transdisciplinary education

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TD, 1 (1), December 200�, pp.�-16

As the prefix “trans” indicates, transdisciplinarity concerns that which 
is at once between the disciplines, across the different disciplines, and 
beyond all disciplines.2 Its goal is the understanding of the present world, 
of which one of the imperatives is the unity of knowledge. The word itself 
is quite recent: it was first introduced by Jean Piaget in 1970.�

Is there something between and across the disciplines and beyond all 
disciplines? From the point of view of classical thought there is abso-
lutely nothing. The space in question is empty, completely void, like the 
vacuum of classical physics. 

In the presence of several levels of Reality, the space between disciplines 
and beyond disciplines is full, just as the quantum void is full of all po-
tentialities: from the quantum particle to the galaxies, from the quark to 
the heavy elements that condition the appearance of life in the universe. 

Transdisciplinary research is clearly distinct from disciplinary research, 
even while being entirely complementary. Disciplinary research concerns, 
at most, one and the same level of Reality; moreover, in most cases, it 
only concerns fragments of one level of Reality. In contrast, transdiscipli-
narity concerns the dynamics engendered by the action of several levels 
of Reality at once. The discovery of these dynamics necessarily passes 
through disciplinary knowledge. 

Disciplinarity, multidisciplinarity, interdisciplinarity, and transdiscipli-
narity are like four arrows shot from but a single bow: knowledge.

The transdisciplinary knowledge TK, corresponds to a new type of knowl-
edge - in vivo knowledge. This new knowledge is concerned with the cor-
respondence between the external world of the Object and the internal 
world of the Subject. By definition, the TK knowledge includes a system 
of values (see Table I).

It is important to realize that the disciplinary knowledge and the transdis-
ciplinary knowledge are not antagonist but complementary. Both their 
methodologies are founded on scientific attitude. The new, transdiscipli-
nary knowledge engenders a new, transdisciplinary education. In order 
to explore what this means, we have to understand what could be the 
transdisciplinary methodology.

2 B Nicolescu, La transdisciplinarité, manifeste, (Le Rocher, Monaco, Collection 
“Transdisciplinarité”, 1996); English translation: Manifesto of Transdisciplinarity, 
(Translated from the French by Karen-Claire Voss, SUNY Press, New York, 2002).

� J Piaget, L’épistémologie des relations interdisciplinaires, in L’interdisciplinarité 
- Problèmes d’enseignement et de recherche dans les universités, (OCDE, Paris, 1972, 
proceedings of a workshop held in Nice in 1970).



Nicolescu

�

KNOWLEDGE DK

IN VITRO

KNOWLEDGE TK

IN VIVO

External world - Object
Correspondence between external 
world (Object) and

internal world (Subject)
knowledge understanding

analytic intelligence
new type of intelligence - harmony be-
tween mind, feelings and body

oriented towards power and posses-
sion

oriented towards astonishment and 
sharing

binary logic included middle logic
exclusion of values inclusion of values

Table 1. Comparison between disciplinary knowledge DK and transdis-
ciplinary knowledge TK. 

2. The transdisciplinary approach of Nature and knowledge
The transdisciplinary approach of Nature and knowledge can be described 
through the diagram shown in Fig. 1.

In the left part are symbolically drawn the levels of Reality

{ NRn, ... , NR2, NR1, NR0, NR-1, NR-2, ... , NR-n }

The index n can be finite or infinite.

Here the meaning we give to the word “reality” is pragmatic and ontologi-
cal at the same time. 

By “Reality” (with a capital “R”) we intend first of all to designate that 
which resists our experiences, representations, descriptions, images, or 
even mathematical formulations. 

Insofar as Nature participates in the being of the world, one must give an 
ontological dimension to the concept of Reality. Reality is not merely a so-
cial construction, the consensus of a collectivity, or some intersubjective 
agreement. It also has a trans-subjective dimension: e.g. experimental 
data can ruin the most beautiful scientific theory. 

Of course, one has to distinguish the word “Real” and “Reality”. Real 
designates that what it is, while Reality is connected to resistance in our 
human experience. The “Real” is, by definition, veiled for ever, while the 
“Reality” is accessible to our knowledge.

By “level of Reality”, notion I first introduced in Nous, la particule et le 



Towards transdisciplinary education

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TD, 1 (1), December 200�, pp.�-16

monde � and later developed in other works,� I designate an ensemble of 
systems which are invariant under certain laws: for example, quantum 
entities are subordinate to quantum laws, which depart radically from 
the laws of the physical world. That is to say that two levels of Reality are 
different if, while passing from one to the other, there is a break in the 
laws and a break in fundamental concepts (like, for example, causality). 

Levels of Reality are radically different from levels of organization as these 
have been defined in systemic approaches. Levels of organization do not 
presuppose a break with fundamental concepts: several levels of organi-
zation can appear at one and the same level of Reality. The levels of or-
ganization correspond to different structures of the same fundamental 
laws. For example, Marxist economy and classical physics belong to one 
and the same level of Reality.

The emergence of at least three different levels of Reality in the study of 
natural systems – the macrophysical level, the microphysical level and 
the cyber-space-time – is a major event in the history of knowledge. It 
can lead us to reconsider our individual and social lives, to give a new 
interpretation to old knowledge, to explore the knowledge of ourselves in 
a different way, here and now.

The existence of different levels of Reality has been affirmed by different 
traditions and civilizations, but this affirmation was founded either on 
religious dogma or on the exploration of the interior universe only. 

In our century, in an effort to question the foundations of science, Ed-
mund Husserl6 and other scholars have detected the existence of differ-
ent levels of perception by the subject–observer of Reality. 

The transdisciplinary viewpoint allows us to consider a multidimensional 
Reality, structured by multiple levels replacing the single-level, one-di-
mensional reality of classical thought. 

According to the transdisciplinary approach, Reality is structured via a 
certain number of levels. The considerations which follow do not depend 

� B Nicolescu, Nous, la particule et le monde, (2e édition, Le Rocher, Monaco, Collection 
“Transdisciplinarité”, 2002).

� B Nicolescu, “Levels of complexity and levels of reality”, in B Pullman (ed.), The emergence 
of complexity in mathematics, physics, chemistry, and biology. Proceedings of the plenary 
session of the Pontifical Academy of Sciences, 27-31 October 1992,  (Casina Pio IV, Vati-
can, Ed. Pontificia Academia Scientiarum, Vatican City, 1996, Distributed by Princeton 
University Press); B Nicolescu, “Gödelian aspects of nature and knowledge”  in G Altmann 
and WA Koch (eds.), Systems - new paradigms for the human sciences, (Walter de Gruyter, 
Berlin - New York, 1998); M Camus, T Magnin, B Nicolescu and K-C Voss, “Levels of rep-
resentation and levels of reality: towards an ontology of science” in NH Gregersen, MWS 
Parsons and C Wassermann (eds.), The concept of nature in science and theology,  II, (Édi-
tions Labor et Fides, Genève, 1998), pp. 94-10�; B Nicolescu, Hylemorphism, quantum 
physics and levels of reality, in Demetra Sfendoni-Mentzou, introduction by Hilary Putnam 
(eds.), Aristotle and contemporary science, I, (Peter Lang, New York, 2000), pp. 1��-1��.

6 E Husserl, Méditations cartésiennes, (Translated form German by Gabrielle Peiffer and 
Emmanuel Levinas, Vrin, Paris, 1966).



Nicolescu

10

on whether or not this number is finite or infinite. For the sake of clarity, 
let us suppose that this number is infinite (i.e. we take n→∞ in Fig. 1). 

Two adjacent levels in Fig. 1 (say, NR0 and NR1) are connected by the logic 
of the included middle, a new logic as compared with classical logic.

The classical logic is founded on three axioms:

 1. The axiom of identity: A is A.

 2. The axiom of non-contradiction: A is not non-A.

 �. The axiom of the excluded middle: There exists no third term T  
     (“T” from “third”) which is at the same time A and non-A.

Figure 1: The transdisciplinary Object, the transdisciplinary subject and 
Interaction term.



Towards transdisciplinary education

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TD, 1 (1), December 200�, pp.�-16

Using this logic one immediately arrives at the conclusion that the pairs 
of contradictories advanced by quantum physics are mutually exclusive, 
because one cannot affirm the validity of an assertion and of its opposite 
at the same time: A and non-A. 

Most quantum logics� have modified the second axiom of classical logic — 
the axiom of non-contradiction — by introducing non-contradiction with 
several truth values in place of the binary pair (A and non-A).  History will 
credit Stéphane Lupasco (1900-1988) with having shown that the logic of 
the included middle is a true logic, formalisable and formalized, multiva-
lent (with three values: A, non-A, and T) and non-contradictory.� 

Our understanding of the axiom of the included middle — there exists a 
third term T which is at the same time A and non-A — is completely clari-
fied once the notion of “levels of Reality” is introduced. 

In order to obtain a clear image of the meaning of the included middle, 
we represent in Fig. 2 the three terms of the new logic — A, non-A, and T 
— and the dynamics associated with them by a triangle in which one of 
the vertices is situated at one level of Reality and the two other vertices at 
another level of Reality. The included middle is in fact an included third. 
If one remains at a single level of Reality, all manifestation appears as a 
struggle between two contradictory elements. The third dynamic, that of 
the T-state, is exercised at another level of Reality, where that which ap-
pears to be disunited is in fact united, and that which appears contradic-
tory is perceived as non-contradictory.

It is the projection of the T-state onto the same single level of Reality 
which produces the appearance of mutually exclusive, antagonistic pairs 
(A and non-A). A single level of Reality can only create antagonistic oppo-

� TA Brody, “On quantum logic”, in Foundation of Physics, 14,(5), 1984, pp. 409-4 � 0 .
� S Lupasco, Le principe d’antagonisme et la logique de l’énergie, (2nd edition, Le Rocher, 

Paris, 1987), Foreword by B Nicolescu; Stéphane Lupasco - L’homme et l’oeuvre, Le Ro-
cher, Monaco, coll. “Transdisciplinarité”, 1999, under the direction of Horia Badescu 
and Basarab Nicolescu.



Nicolescu

12

sitions. It is inherently self-destructive if it is completely separated from 
all the other levels of Reality. A third term which is situated at the same 
level of Reality as that of the opposites A and non-A, cannot accomplish 
their reconciliation. 

The T1-state present at the level NR1 (see Fig. 1) is connected to a pair 
of contradictories (A0 and non-A0) at an immediately adjacent level. The 
T1-state allows the unification of contradictories A0 and non-A0, but this 
unification takes place at a level different from the one NR0 on which A0 
and non-A0 are situated. The axiom of non-contradiction is thereby re-
spected. 

There is certainly a coherence among different levels of Reality, at least in 
the natural world. In fact, an immense self-consistency — a cosmic boot-
strap — seems to govern the evolution of the universe, from the infinitely 
small to the infinitely large, from the infinitely brief to the infinitely long. 
A flow of information is transmitted in a coherent manner from one level 
of Reality to another in our physical universe.

The logic of the included middle is capable of describing the coherence 
among these levels of Reality by an iterative process defined by the follow-
ing stages: (1) A pair of contradictories (A0, non-A0) situated at a certain 
level NR0 of Reality is unified by a T1-state situated at a contiguous level 
NR1 of Reality; (2) In turn, this T1-state is linked to a couple of contradic-
tories (A1, non-A1), situated at its own level; (�) The pair of contradictories 
(A1, non-A1) is, in its turn, unified by a T2-state situated at a third level 
NR2 of Reality, immediately contiguous to the level NR1 where the ternary 
(A1, non-A1, T1) is found. The iterative process continues to indefinitely 
until all the levels of Reality, known or conceivable, are exhausted. 

In other words, the action of the logic of the included middle on the dif-
ferent levels of Reality induces an open structure of the unity of levels of 
Reality. This structure has considerable consequences for the theory of 
knowledge because it implies the impossibility of a self-enclosed complete 
theory. Knowledge is forever open.

The open structure of the unity of levels of Reality is in accord with one of 
the most important scientific results of the twentieth century concerning 
arithmetic, the theorem of Kurt Gödel,9 which states that a sufficiently 
rich system of axioms inevitably leads to results which are either indeci-
sive or contradictory. The implications of Gödel’s theorem have consider-
able importance for all modern theories of knowledge, primarily because 
it concerns not just the field of arithmetic, but all of mathematics which 
include arithmetic. 

To be sure, there is a coherence of the unity of levels of Reality, but this 
coherence is oriented. If coherence is limited only to the levels of Real-
9 See, for example, E Nagel and JR Newman, Gödel’s proof, (New York University Press, 

New York, 1958); Hao Wang, A logical journey - From Gödel  to philosophy, (The MIT 
Press, Cambridge, Massachusetts - London, England, 1996). 



Towards transdisciplinary education

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TD, 1 (1), December 200�, pp.�-16

ity, it stops both at the “highest” level and at the “lowest” level (see Fig. 
1). If we wish to suggest the idea of a coherence which continues beyond 
these two limiting levels, so that there is an open unity, we must con-
ceive the unity of levels of Reality as a unity that extends by a zone of 
non-resistance to our experiences, representations, descriptions, images, 
and mathematical formulations. This zone of non-resistance corresponds 
to the “veil” which Bernard d’Espagnant referred to as “the veil of the 
Real”.10 In this zone there are no levels of Reality.

Quite simply, the non-resistance of this zone of absolute transparence is 
due to the limitations of our bodies and of our sense organs — limitations 
which apply regardless of what measuring tools are used to extend these 
sense organs. The zone of non-resistance corresponds to the sacred — to 
that which does not submit to any rationalization. It is rational but not 
rationalizable, a distinction often used by Edgar Morin.11

It is important to note that the three loops of coherence in Fig. 1 are situ-
ated not only in the zone where the levels of Reality are absent but also 
in between the levels of Reality: the zone of non-resistance of the sacred 
penetrates and crosses the levels of Reality. In other words, the transdis-
ciplinary approach of Nature and knowledge offers a link between the 
Real and the Reality. 

The unity of levels of Reality and its complementary zone of nonresis-
tance constitutes what we call the transdisciplinary Object. 

A new Principle of Relativity12 [1] emerges from the coexistence between 
complex plurality and open unity: no level of Reality constitutes a privi-
leged place from which one is able to understand all the other levels of 
Reality. A level of Reality is what it is because all the other levels exist at 
the same time. This Principle of Relativity is what originates a new per-
spective on religion, politics, art, education, and social life. And when our 
perspective on the world changes, the world changes. “Saying a true word 
is equivalent to the transformation of the world” - writes the great brazil-
ian educator Paulo Freire in his Pedagogy of the Oppressed.1�

The different levels of Reality are accessible to human knowledge thanks 
to the existence of different levels of perception, described diagrammati-
cally at the right of Fig. 1. They are found in a one-to-one correspondence 
with levels of Reality. These levels of perception 

{NPn, ... , NP2, NP1, NP0, NP-1, NP-2, ... , NP-n}

permit an increasingly general, unifying, encompassing vision of Reality, 

10 B  d’Espagnat, Le réel voilé - Analyse des concepts quantiques, (Fayard, Paris, 1994).
11 E Morin, La méthode III - La connaissance de la connaissance/1. Anthropologie de la 

connaissance, (Seuil, Paris, 1986).
12 B Nicolescu, La transdisciplinarité, manifeste, (Le Rocher, Monaco, Collection “Trans-

disciplinarité”, 1996); English translation: Manifesto of Transdisciplinarity, (Translated 
from the French by Karen-Claire Voss, SUNY Press, New York, 2002).

1� P Freire, Pedagogy of the oppressed, (The Seabury Press, New York, 1968).



Nicolescu

1�

without ever entirely exhausting it.

As in the case of levels of Reality, the coherence of levels of perception 
presuppose a zone of non-resistance to perception. In this zone there are 
no levels of perception.

The unity of levels of perception and this complementary zone of nonre-
sistance constitutes what we call the transdisciplinary Subject.

The two zones of non-resistance of transdisciplinary Object and Subject 
must be identical for the transdisciplinary Subject to communicate with 
the transdisciplinary Object. A flow of consciousness that coherently cuts 
across different levels of perception must correspond to the flow of infor-
mation coherently cutting across different levels of Reality. The two flows 
are interrelated because they share the same zone of non-resistance.

Knowledge is neither exterior nor interior: it is simultaneously exterior 
and interior. The studies of the universe and of the human being sustain 
one another. 

The open unity between the transdisciplinary Object and the transdis-
ciplinary Subject is conveyed by the coherent orientation of the flow of 
information, described by the three oriented loops in  Fig. 1which cut 
through the levels of Reality, and of the flow of consciousness, described 
by the three oriented loops which cut through the levels of perception.

The loops of information and consciousness have to meet in a least one 
point X in order to insure the coherent transmission of information and 
consciousness everywhere in the visible and invisible regions of the Uni-
verse. In some sense, the point X is the source of Reality and perception. 
The point X and its associated loops of information and consciousness 
describe the third term of the transdisciplinary knowledge: the Interaction 
term between the Subject and the Object, which can not be reduced neither 
to the Object nor to the Subject.

This ternary partition

 { Subject, Object, Interaction }

is radically different from the binary partition

 { Subject, Object }

which defines the modern metaphysics.

The view I am expressing here is totally conform to the one of the found-
ers of quantum mechanics Werner Heisenberg, Wolfgang Pauli and Niels 
Bohr. 

In fact, Werner Heisenberg came very near, in his philosophical writ-
ings, to the concept of “level of Reality”. In his famous Manuscript of the 
year 1942 (published only in 1984) Heisenberg, who knew well Husserl, 
introduces the idea of three regions of reality, able to give access to the 



Towards transdisciplinary education

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TD, 1 (1), December 200�, pp.�-16

concept of “reality” itself: the first region is that of classical physics, the 
second - of quantum physics, biology and psychic phenomena and the 
third – that of the religious, philosophical and artistic experiences.1� This 
classification has a subtle ground: the closer and closer connectiveness 
between the Subject and the Object.

The methodology of transdisciplinarity is therefore founded on three pos-
tulates:

i. There are, in Nature and in our knowledge of Nature, different levels of 
Reality and, correspondingly, different levels of perception.

ii. The passage from one level of Reality to another is insured by the logic 
of the included middle.

iii. The structure of the totality of levels of Reality or perception is a com-
plex structure: every level is what it is because all the levels exist at the 
same time.1�

The first two get their experimental evidence from quantum physics, 
while the last one has its source not only in quantum physics but also in 
a variety of other exact and human sciences.

It is important to note that one can assume the validity of the three postu-
lates of transdisciplinarity independently of their historical roots in some 
branches of modern science. In other words transdisciplinarity does not 
rest on a transfer from modern science: this would be a wrong epistemo-
logical and philosophical procedure. Modern science, via its most general 
aspects, allowed us to identify the three postulates of transdisciplinarity, 
but once they are formulated they have a much wider validity then in 
modern science itself, namely they could be applied in the field of educa-
tion and culture.

The transdisciplinary education, founded on the transdisciplinary meth-
odology, will allow us to establish links between persons, facts, images, 
representations, fields of knowledge and action, to discover the Eros of 
learning during our entire life and to built beings in permanent question-
ing and permanent integration.

1� W Heisenberg, Philosophie - Le manuscrit de 1942, (Translation from German and 
introduction by Catherine Chevalley, Seuil, Paris, 1998).

1� B Nicolescu, La transdisciplinarité, manifeste, (Le Rocher, Monaco, Collection 
“Transdisciplinarité”, 1996); English translation: Manifesto of Transdisciplinarity, 
(Translation from the French by Karen-Claire Voss, SUNY Press, New York, 2002).