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Center Leo Apostel

Deep Interdisciplinarity

The Center Leo Apostel (CLEA) is a transdisciplinary, interfaculty research center at the Vrije Universiteit Brussel (VUB). CLEA’s mission is to bridge the different scientific, social and cultural disciplines. It was founded in 1995 under the impulse of the Belgian philosopher Leo Apostel (1925-1995). He formulated the goal of CLEA as the integration of the different disciplines into a coherent worldview, so as to counteract the current fragmentation into ever more specialized approaches. Next to worldviews, our research addresses fundamental interdisciplinary issues, including complexity, systems, evolution, quantum entanglement, cognition, artscience and well-being.

We call our research philosophy "thinking beyond boundaries". Thanks to this philosophy, CLEA has attracted and trained a large number of talented researchers from the humanities, social sciences, physical sciences and engineering, representing countries from across the globe. CLEA is now internationally recognized as a unique, transdisciplinary research center with a steady output of high-level, innovative publications.

Next to our research, we offer diverse educational programs and activities, including an interdisciplinary PhD, the School of Thinking postgraduate, courses, and public seminars and lecture series.



Orion Maxted


CLEA PLAYEEEEERS is a series of play sessions,...

Travelling Transdisciplinary Bootcamp 6 December 2022

*NEW* Travelling Transdisciplinary Bootcamp

Together with the VUB Faculty of Law and Criminology, CLEA presents a new educational format: the ‘Travelling Transdisciplinary Bootcamp’.

The Practice of Thinking

BOOK. 'The Practice of Thinking - Cultivating the extraordinary': a rare peek into the School of Thinking

Many of the problems we face today are the outcome of the malpractice of thinking.  Complex issues are aggravated by inadequate approaches and assumptions.

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