This book is an introduction to key issues in philosophical thought of Plato and Aristotle. Therefore it aims to provide prefatory orientation in their complex thought and addresses problems of dialogue, ontological hierarchy, metaphysics, knowledge and practical philosophy.

The textbook concentrates on selected topics and problematic aspects in preparing a cohesive and well-organised academic paper, such as: the relation between thinking and writing, establishing arguments, using logic and appropriate language in argumentative writing. The author considers writing as thinking made visible, as thinking in slow motion, a process whereby we can inspect and reflect on what we are thinking about. Writing doesn t simply convey thought, it also forges it. It is a two-way street, both expressing and generating ideas."

The text is structured in chronological and ideological order and presents nine basic types of the classical perception of the problem of knowledge through an analysis of the atomistic theory of perception, Platonism, Aristotle's doctrine, scepticism, rationalism, sensualism, Kant's theory, phenomenological-existential, pragmatic, and (post) analytical perceptions. The proposed work aspires to be an introduction (not a complete presentation, neither in the number of types, nor in a full interpretation) and a basis for the reader's interpretations which is reflected in the structure of the...