The issue of happiness is the core of the self-narration of the French Revolution. The promise and the hope of happiness are fundamental elements of its capacity of activat¬ing millenarian hopes, and of being conceived as the «Good news». The essay focuses on Robespierre’s conception of happiness. The Author questions the mainstream posi¬tions on the Jacobin conception of happiness, and particularly the way they attribute to Robespierre only a concern with «public happiness». Through a philological, lexico¬logical and lexicometrical reading, it is reconstructed the dialectic between individual, private and public happiness in Robespierre’s political thought and political initiative.