The article will argue that Charles Sanders Peirce's concepts of the ‘Dynamics of Belief and Doubt’, the ‘Fixation of Belief’ as well as ‘habits of belief’ taken together comprise a theory of learning. The ‘dynamics of belief and doubt’ are Peirce's explanation for the process of changing from one belief to another. Teaching, then, would be an attempt to control that process. Teaching critical thinking represents an attempt to teach the learner to regulate and discipline his or her own ‘settlement (...) of belief’. The ‘settlement of belief’ takes four different forms based on doubt. Peirce's concept of the ‘habits of belief’ refers to the inner and outer constraints placed both on belief as such and belief as it becomes action. The article may be read as both an exegesis of learning and as a pedagogical guide for teaching critical thinking to college students. (shrink)