EdSight

Trần Thanh Vân — known in the French scientific world as Jean Trần Thanh Vân — was born on 4 July 1936 in Đồng Hới, Quảng Bình Province, in the narrow coastal corridor of central Vietnam that has historically been among the most war-exposed regions of the country. At the age of thirteen he left his family to study in Huế, and in 1953, when he was seventeen, he departed Vietnam for France, joining the generation of Vietnamese students whose intellectual formation would take place entirely in the institutions of the former colonial power. He studied mathematics and physics at the University of Paris, completing his undergraduate degrees in 1957, and then committed himself to particle physics, defending a doctoral thesis in 1963 on the role of the neutron in the structure of matter. He joined the Centre National de la Recherche Scientifique (CNRS) — France's premier research organisation — where he would spend the whole of his scientific career, eventually attaining in 1991 the rank of Directeur de Recherches, the most senior research designation in the French system. In January 1966, three years after his doctorate, he organised an informal gathering of approximately thirty particle physicists at the ski resort of Moriond in the French Alps — a meeting designed to overcome what he perceived as a damaging distance between theoretical and experimental physicists working on the same problems — and the Rencontres de Moriond was born: an annual conference that would grow over the following six decades into one of the most important events in the international high-energy physics calendar. He extended the Rencontres model to Blois, France, in 1989 (Rencontres de Blois), and to Vietnam in 1993 (Rencontres du Vietnam), the latter organised while the United States embargo on Vietnam was still in force and requiring exceptional diplomatic persistence to bring senior Western scientists, including Nobel Laureate Jack Steinberger, to Hà Nội. In 2013 he and his wife, Professor Lê Kim Ngọc — herself a physicist and an equal partner in all his educational and philanthropic work — inaugurated the International Centre for Interdisciplinary Science and Education (ICISE) in the coastal city of Quy Nhơn, a purpose-built campus that has since hosted more than forty international symposia attended by over 16,500 scientists from more than sixty countries, including eighteen Nobel Laureates. He was made a Knight of the French Legion of Honour in 1999, subsequently promoted to the rank of Officer by President Emmanuel Macron, and in 2011 received the John T. Tate Medal of the American Institute of Physics — the most prestigious international recognition in physics leadership — for more than four decades of work bringing the global physics community together across national and cultural borders. He continues to lead the Rencontres du Vietnam and ICISE into his ninth decade.

The Rencontres de Moriond, which Trần Thanh Vân founded in January 1966 as a gathering of thirty physicist friends at a ski resort in the French Alps, was both a practical response to a perceived problem and an implicit theory of scientific education. The problem Trần Thanh Vân identified was the institutional distance between theoretical and experimental physicists — a distance that replicated, within the scientific community, the separation between knowledge and practice that educational reformers have criticised in classrooms. His solution was to create a setting of radical informality and genuine peer encounter: small enough that every participant could speak, long enough — typically two weeks — that real intellectual friendships could form, and physically situated in a context (the mountains, skiing, shared meals) that dissolved the hierarchical formalities of the lecture hall. The key pedagogical principle was that young researchers at the post-doctoral level should engage directly and on near-equal terms with senior scientists and Nobel Laureates, presenting their own work and subjecting it to rigorous collegial challenge. Over six decades the Rencontres de Moriond grew into one of the most important annual events in particle physics and cosmology, the venue at which many significant experimental results — including early results from CERN experiments — have been first publicly presented. Its enduring significance lies not only in the science it has transmitted but in the model of scientific education it has embodied: that genuine intellectual formation requires encounter, dialogue, and the willingness of the knowledgeable to make themselves accessible to those still becoming.

• CERN Courier. (2006). 40 great years of the Rencontres de Moriond. CERN Courier
• American Institute of Physics. (2011). Jean Trân Thanh Vân wins 2011 Tate Medal. AIP

The Rencontres du Vietnam, which Trần Thanh Vân launched in Hà Nội in 1993, was an act of scientific diplomacy as much as a scientific conference. Vietnam had spent nearly two decades after reunification in effective isolation from the international research community: the American trade embargo, the collapse of Soviet institutional support, and the poverty of the post-war decades had left Vietnamese universities and research institutions cut off from the international networks through which scientific knowledge moves. Trần Thanh Vân's conference, organised in collaboration with Vietnamese institutions and supported by his personal relationships with the international physics community, was the first sustained effort to reconnect Vietnamese scientists to their global peers. That he succeeded in bringing Nobel Laureate Jack Steinberger to Hà Nội in 1993, while the US embargo remained in force, required what his colleagues described as extraordinary persistence and the credibility accumulated through twenty-seven years of organising Moriond. The Rencontres du Vietnam has continued annually or biennially since 1993, expanding from particle physics to cosmology, astrophysics, and interdisciplinary science, and it has consistently operated on the Moriond principle: mixing Vietnamese graduate students and young researchers with the most distinguished senior scientists in the world, creating the conditions for the kind of intellectual formation that institutional isolation had denied a generation of Vietnamese physicists.

• Rencontres du Vietnam. (n.d.). The inventor of the “Rencontres.” Rencontres du Vietnam
• Physics (APS). (2019). Q&A: The Meetings Man. APS Physics

The inauguration of the International Centre for Interdisciplinary Science and Education (ICISE) in Quy Nhơn in October 2013 represented the materialisation, in brick and landscape, of the educational philosophy Trần Thanh Vân and Lê Kim Ngọc had developed across five decades of conference organisation. Located on a coastal hillside in Bình Định Province — the home region of the seventeenth-century philosopher and poet Đào Duy Từ, and a region with its own deep tradition of intellectual culture — ICISE was designed as a permanent, architecturally distinguished campus that could host the full annual cycle of Rencontres du Vietnam conferences and related scientific schools. Its design and programme embody the conviction that the physical and social conditions of intellectual encounter are educationally consequential: the centre's architecture, its gardens, its proximity to the sea, and its programme of concerts and cultural events alongside the scientific conferences all reflect the Moriond insight that scientific formation is a whole-person activity that cannot be reduced to lecture and examination. By 2023 ICISE had hosted more than forty international symposia, welcomed over 16,500 scientists from more than sixty countries, and received eighteen Nobel Laureates — making it, for its scale, one of the most internationally connected science education institutions in Southeast Asia. It has also served as a site for advanced schools targeted specifically at Vietnamese graduate students and early-career researchers, providing the kind of direct access to international scientific culture that the country's universities, still recovering from decades of isolation, cannot yet provide independently.

• ICISE. (n.d.). About Us. ICISE Quy Nhon
• European Physical Society. (2013). Inauguration of the International Center of Interdisciplinary Science Education. EPS News

Underlying all of Trần Thanh Vân's work is a coherent and consistent philosophy of scientific education that might be described as a pedagogy of encounter. His foundational insight — first articulated in practice at Moriond in 1966 — is that the transmission of scientific knowledge through formal instruction is insufficient for the formation of scientists, because science is not only a body of knowledge but a community of practice, and entry into that community requires direct personal contact with its most accomplished members. The informal, dialogue-centred format of the Rencontres conferences — in which young researchers present their work to Nobel Laureates and engage them in sustained collegial exchange — operationalises, in the context of advanced scientific education, the same principle that Lev Vygotsky identified as the Zone of Proximal Development: that the most productive learning occurs at the boundary between what the learner can accomplish independently and what becomes possible through engagement with a more knowledgeable other. The “more knowledgeable other” in Trần Thanh Vân's model is not the classroom teacher but the senior scientist whose tacit knowledge, intellectual style, and way of inhabiting a problem can be acquired only through prolonged proximity — through the shared meals, ski slopes, and evening discussions that the Moriond format was designed to make possible. This philosophy of scientific formation through community membership rather than didactic instruction has never been systematically theorised in his own writings, but it is consistently enacted in the design of every conference he has created.

In parallel with his scientific and institutional work, Trần Thanh Vân and Lê Kim Ngọc have conducted a sustained programme of educational philanthropy on behalf of disadvantaged Vietnamese children. They raised funds internationally for the construction of three SOS Children's Villages — in Đà Lạt, Huế, and Đồng Hới (his birthplace) — providing residential care and schooling to orphaned and at-risk children, and supported the establishment of a bakery school in Huế providing vocational training for young people without access to conventional educational pathways. These activities reflect the conviction, consistent with the broader educational philosophy expressed in the Rencontres and ICISE work, that the preconditions of learning — security, community, access — are not separable from its content, and that a scientist who benefits from France's investment in his own formation bears an obligation to extend similar opportunities to those for whom structural inequity has made education inaccessible. The combination of world-class scientific conference organisation and grassroots educational philanthropy that characterises Trần Thanh Vân's career is unusual enough to be worth remarking: it reflects a view of education as a single continuous project, running from the most advanced frontier of particle physics to the most basic need of a child without a home.

• Vietnam News. (2023). French President promotes Legion of Honour awards for Vietnamese professors. Vietnam News

Trần Thanh Vân's legacy operates simultaneously within the international physics community and within the long history of Vietnamese efforts to participate in and contribute to global intellectual culture. Within physics, the Rencontres de Moriond has become one of the field's canonical annual institutions, and the Rencontres model — the informal, dialogue-centred, mixed-seniority conference format — has been widely imitated, constituting a genuine contribution to the practice of scientific education at the highest level. Within Vietnam, the Rencontres du Vietnam and ICISE have played a role in the country's post-isolation scientific reconstruction analogous to the role that Nguyễn Văn Huyên's institutional work played in post-independence educational construction: they have created conditions in which Vietnamese scientists can engage with the international research frontier on terms of equality rather than dependency. The 2011 Tate Medal citation of the American Institute of Physics recognised Trần Thanh Vân for “more than four decades of work bringing the global physics community together across national and cultural borders” — a description that captures the fundamentally educational character of his career. His example suggests that the most consequential contributions to scientific education are sometimes made not in classrooms or through curriculum design but through the patient, persistent creation of the institutional and interpersonal conditions in which minds at different stages of development can encounter one another freely — and that this creation is itself an act of educational thought.

• American Institute of Physics. (2011). Jean Trân Thanh Vân | Tate Medal. AIP
• Symmetry Magazine. (2012). Physicist Jean Tran Thanh Van, creator of one of the most important conferences in particle physics. Symmetry

• Trần Thanh Vân, J. (Ed.). (1966–present). Rencontres de Moriond: Proceedings (annual volumes). Éditions Frontières / various publishers.
• Trần Thanh Vân, J. (Ed.). (1989–present). Rencontres de Blois: Proceedings (annual volumes). Éditions Frontières / various publishers.
• Trần Thanh Vân, J. (Ed.). (1993–present). Rencontres du Vietnam: Proceedings (biennial volumes). Thế Giới Publishers / various publishers.
• Trần Thanh Vân, J., & Lê Kim Ngọc. (2013–present). ICISE Conference Proceedings (annual series). International Centre for Interdisciplinary Science and Education, Quy Nhơn.