Leviathan is a multilevel treatise that, by the type of gradation, begins to explain simple concepts, moving on to more complex categories, revealing the essence of a person's life, his actions and actions; essence of the state, supreme authority and contract; religion and Christianity. This book is very useful for understanding how the English Revolution influenced people's minds; to understand some of the basics of English courts, moral philosophy. This book has had a great influence on the development of philosophy and is still read with great interest.