In this text I am going to work the topic of the dialectic in the occidental philosophy. I am going to do a historical contextualization about of the authors that write about this topic and their theoretical influence. I begin explaining to Kant how precedent of Hegel. Hegel is who coined the concept of dialectic, but after other thinkers it used to develop their own theories and they added new things to complete or question the first theory. After of Hegel other author developed this concept, this author is Marx, who questioned theoreticaly the ideas of Hegel and this philosopher derived to the other ideas about of the concept of dialectic. I consider that this topic is very important to be able to understand the modern philosophy and the development of other political theories of the left movements in these last centuries. The philosophy and politics are very associated and we use to explain historical phenomenons.