This article brings to light the role and importance of Descartes' concept of freedom for his ethics of belief. For Descartes, I argue, correctly assigning epistemic praise/blame means tracking authentic freedoms: ascertaining whether an act of assent is spontaneous or perverse both before and after eliciting the act of will. Authentic spontaneity ensures that the agent receives praise for his epistemic accomplishment, which includes the right results as well as the right order of steps. Authentic perversity leads to the agent being blamed for not accepting the truth while fully aware of the gravity of the gesture.