Abstract
The analysis inherent in this text is basic for the construction of Proclus’s system, namely the problem of the relation: the One/Multiplicity. This question is central and constitutes the most meaningful systems of Greek philosophy. The relation: the One/Multiplicity is the starting point in constructing metaphysical systems, it makes that all that is its consequence must have and has a relational nature. This eliminates thinking about the world in terms of isolated, autonomic, and unrelated objects. The considerations in question have shown the most important stages in the problems: the One/Multiplicity, starting from Plato, through Plotinus Porphyry, Iamblichus, down to Proclus