The Commens Dictionary
Quote from ‘The Fourth Curiosity’
…a sign which belongs to a conventional system of possible signs, and which is intended and calculated to produce a belief in the mind to which it is addressed is an assertion.
MS [R] 200:91
‘Assertion’ (pub. 07.03.16-11:00). 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-fourth-curiosity-12.