Abstract
This paper is an interpretation of the precise meaning of Spinoza's provocative theses that "right is might", and that the real basis of political and other authority is power. The possibility condition of these radically modern theses — that imply the end of traditional theologico-political thinking — is a peculiar naturalistic theology. At the same time, this paper provides a brief, but thorough introduction to Spinoza's political philosophy. Some aspects of it which are often neglected, such as the intricate relationship beween the law and the mores of the people, are given their due weight