Context: Francisco Varela and Humberto Maturana worked closely together for several short episodes and wrote joint publications during the 1970s and 1980s. After that their respective paths in life diverged. Problem: What is the common ground and what are the differences between these two authors with respect to their lives and aims? Method: The author reconstructs their common history in the form of personal reflections and conversations with Varela. Results: The personal reflections reveal the intellectual path Maturana took to develop (...) his way of thinking, in particular his fascination with explanatory processes and the phenomenon of life. The conversations with Varela portray him as a man of great “cognitive autonomy,” whose career started with the intention to study “psychism in the universe.” For Varela it seemed possible, through meditation, to reach transcendental reality as something that exists externally to the living of human beings and that can be known as such. Maturana, by contrast, claims that there is no way to refer to such a universal truth. Rather, human beings generate all the worlds they live in. Implications: While the two men collaborated in both teaching and writing, they eventually created two different constructivist approaches driven by a different set of questions. Constructivist content: Both Humberto Maturana and Francisco Varela have decisively contributed to constructivist approaches. (shrink)

Context: In 1974, Humberto Maturana and Francisco Varela published De Máquinas y Seres Vivos Autopoiesis: La organización de lo vivo in Santiago, Chile as a little book. A second edition of this publication was proposed in 1994, and the present document is a recent translation of Maturana’s reflections “twenty years after.” Problem: The book clearly enunciates what it means to say that living systems are molecular autopoietic systems, and this Preface reflects on the shift of understanding from earlier notions of (...) self-referred or auto-referred systems to the concept of autopoiesis. Implications: The Preface describes the systemic quality that is human living and human sense-making. It marks what we can retrospectively see as the bridge between the explicitly biological studies of Maturana (and Varela), and the later, more anthropological and therapeutic work of Maturana with Gerda Verden-Zöller between 1989 and 1994 and, especially, with Ximena Dávila Yáñez since the year 1999. Results: The underlying understanding implicit in this document outlines in great clarity the implications of Maturana’s fundamental insights. It presents both a logical and passionately argued case for mutual respect, grounded in scientific findings in biology. The Preface is a clear vision of why Maturana’s work has been so influential for reflexivity and constructivism. (shrink)