An approximation of Karl Popper's critical liberalism

Abstract

Karl Popper is one of the great defenders of liberalism and open society, but he is also one of the main critics of liberalism itself, as he considers that it has many weak points that are in need of analysis and solutions. Therefore his attack is directed not only at his enemies but also at those liberal thinkers who do not defend an open society with enough intellectual solidity. Popper proposes to abandon some naive ideas of the very liberal tradition and to replace them with more solid and sophisticated viewpoints. In this paper, we review these topics and the changes of frame posed by Popper.