Hannah Arendt is often read as author of the crisis. Being born in the short 20th century, bearing witness and even living herself, while she was among men, many of the catastrophes that had place at the world s stage. As a thinker, she made her systematic meditation over the totalitarian phenomenon the starting point for many works which intention resided on trying to understand the world, and, from this comprehension, to be able to reconcile herself with it. Comprehending the totalitarian regime as a radical novelty, that embarrass our categories of thought, as well as our ability to act in the world and discourse about the human affairs, Arendt ended up approximating this terrible event with another one, which essence itself is the novelty: the Revolution. Understanding the Revolution as a foundation of a Constitution of Freedom and of a New World Order, the author faces the difficult challenge of conciliating things that seem to be completely contradictory in contemporaneity: the capacity of political action to start something entirely new and the necessity to stabilize the public space where action must happen. It is at the intersection of this unresolvable dichotomy that this work intends to explore fundamental concepts of the Arendtian thought, as authority, freedom, action, power, among others. With them I will try to understand the immersion that Arendt do to the depths of the past to give new dignity to the political field, in a time where the humans beings take, each passing day, less responsibility for the world and for the possibilities it reserves.