It happened in the past that great philosophers at some point in their lives engaged themselves in political activities. There were many reasons why this usually did not end well. The most famous example, which remained in a way a symbol of mixing philosophy with politics, is the case of Plato and his expedition to Syracuse. Since then, “Syracuse” has become a warning to philosophy and philosophers not to cross the borders of politics in search of wisdom, because usually it ends badly for philosophy itself. At the same time, philosophy contains the need for practical action, which in turn includes the postulate of the relationship between truth and goodness. This is best expressed in the Socratic postulate: “to know means to do good”. The problem of the relationship between philosophy and politics arose dramatically in the 20th century in the face of the tragic events connected with the emergence of cruel totalitarianisms, the world wars they were waging and the genocide they committed. Martin Heidegger, considered by many to be the most eminent philosopher of the twentieth century, crossed the border between philosophy and politics and became involved on the side of criminal Nazism. The text is an attempt to present and evaluate his activities
