Abstract
Horst Seidl of the University of Nijmegen has written an unusual book. It consists of a series of critical reviews of publications by other scholars concerning Aristotle's logic, epistemology and metaphysics. The author's approach is not merely historical and critical: a philosopher must reach definite, objective truth. He reminds the reader that this is a difficult enterprise: too often Aristotle's works have been interpreted from the viewpoint of particular theories. Seidl's study is a defense of Aristotle's doctrines and methods such as the use of syllogisms, the theory of the possible, etc. Somewhat surprisingly Seidl asserts that deductive arguments cannot be used in metaphysics.