This volume deals with the theory of the transcendentals 'being' ('thing'), 'unity', 'truth', 'goodness' in Suárez' Disputationes metaphysicae (1597). From its beginning in the 13th century the doctrine of the transcendentals is characterized by a plurality of motives and philosophical approaches to which correspond divergent traditions of thought. How does Suárez' metaphysics relate to them? From what point of view does it take up and transform the methods and doctrines which came down from medieval thinkers? Does Suárez arrive at a new synthesis and - if this is the case - what are the peculiar features of this synthesis? Through the discussion of these questions the study leads to a new interpretation of a milestone in the pre-kantian development of metaphysics as transcendental theory.