The Commens Dictionary
Quote from ‘The Logic Notebook’
…logic is merely the science of ideas considered as signs.
MS [R] 339:322r
‘Logic’ (pub. 09.08.17-12:57). Quote in M. Bergman & S. Paavola (Eds.), The Commens Dictionary: Peirce's Terms in His Own Words. New Edition. Retrieved from http://www.commens.org/dictionary/entry/quote-logic-notebook-15.