The other side of beauty is a fascinating journey through the work of Eugenio Trias, who in the past three decades has made its proposal for a "philosophy of the limit." In a way not common, Fernando Pérez-Borbujas goes back to the sources of Nietzsche's thought and his diagnosis of the death of God, with the consequent crisis of metaphysics and revaluation of all values, to introduce us to the floor of a new metaphysics conceives being as will, desire and longing.

On this land stands the twentieth century Spanish philosophy, whose representatives (Unamuno, Ortega y Gasset, Zubiri and Maria Zambrano) but do not attempt to suture the wound opened by modernity between reason and life, intelligence and passion, head and heart. In line with these Spanish thinkers moves the whole philosophy of Eugenio Trias, the author is clearing from the categories of "passion" and "beauty." Nietzsche and Plato thus become the two binary stars that guide the philosophical adventure Trias. Intelligence and passion as the road will show us a metaphysics of the will becomes a "metaphysical aesthetics", a "metaphysics of art." The idea of "limit" is then set as the great proposal of a metaphysics in which intelligence and will intertwine and come together in beauty. But the "beauty", far from being a reality unambiguous and uniform light, we are shown as incitement to follow a path maze, full of shadows and darkness, leading to the heart of reality. From the hand of Tristan and Isolde, Romeo and Juliet, Goethe, Duchamp and Tarkowski, Pérez-Borbujas on this trip is touring all parts of the city's limit (ethical, religious, artistic and philosophical), unraveling the tangled skein in which is embroiled philosophy in our day, at the same time showing a surprising and unprecedented "Trias from within."