‘Essential Depth’ (pub. 28.11.15-11:05). 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-chap-xi-logical-breadth-and-depth-6.
Quote:
The essential depth of a term which is sometimes called its essence consists of the really conceivable qualities predicated of it in its definition. This is one of the most important features of logic.
Source:
Peirce, C. S. (1873). Chap. XI. On Logical Breadth and Depth. MS [R] 384; MS [W] 233.
URL:
http://www.commens.org/dictionary/entry/quote-chap-xi-logical-breadth-and-depth-6