The Commens Dictionary
Quote from ‘Harvard Lectures on the Logic of Science. Lecture X: Grounds of Induction’
Symbols, as such, are subject to three laws one of which is the conditio sine qua non of its standing for anything, the second of its translating anything, and the third of its realizing anything. The first law is Logic, the second Universal Rhetoric, the third Universal Grammar.
‘Logic [in the narrow sense]’ (pub. 27.01.13-20:47). 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-harvard-lectures-logic-science-lecture-x-grounds-induction-1.