In face of so many typical problems of our present society such as social inequality, unemployment, violence, poverty and misery, like others, how can we establish rules that look for a better human development with deserving conditions of life?! Habermas points out a way that is the excellence of intersubjectivity and it requires the abandonment of the outstanding point of view of the conscience and of the subject-object relationship; it is the abandonment of the monologic pattern on behalf of a commucicative pattern of reason. This study, in fact, intends to discurs Habermas questions that lead to a Democracy proposal. Its speech presents itself as the basis for the comprehension of juridical relationships. Jürgen Habermas develops a new ethics proposal which basis is in speech and communication between the subjects really inclined towords dialogue and agreement. It is the speech as a possibility of fundamentation and legitimation of Law.