This volume gathers prominent international scholars to celebrate the complex legacy of Reiner Wiehl, whose work has been instrumental in bringing together the European tradition of prima philosophia as represented by Plato, Spinoza, Kant and Hegel, with the adventurous speculative renewal in the twentieth century by Alfred North Whitehead. Grouped into four sections (Process and Universals, Nature and Subjectivity, Ethics and Civilization, Psychology and Phenomenology), the fifteen papers collected in this book cover a range of topics which is as wide and as intertwined as Wiehl's own expertise.

Michel Weber is university professor at the Catholic University of Louvain, (Belgium), and editor of the series Chromatiques whiteheadiennes, and the series Process Thought (both published by Ontos Verlag).

Pierfrancesco Basile is the author of Experience and Relations. An Examination of Francis Herbert Bradley's Conception of Reality (1999) and of several essays on the origin of analytic philosophy, British idealism, and Whitehead's philosophy.