The Commens Dictionary

Quote from ‘Deduction, Induction, and Hypothesis’


Induction infers a rule. Now, the belief of a rule is a habit. That a habit is a rule active in us, is evident. That every belief is of the nature of a habit, in so far as it is of a general character, has been shown in the earlier papers of this series. Induction, therefore, is the logical formula which expresses the physiological process of formation of a habit. [—] We may say, therefore, that hypothesis produces the sensuous element of thought, and induction the habitual element.

CP 2.643; W 3:337
‘Induction’ (pub. 30.01.13-19:12). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from
Jan 30, 2013, 19:12 by Sami Paavola
Last revised: 
Oct 20, 2015, 15:45 by Mats Bergman