The Commens Dictionary
Quote from ‘Reason's Rules’
An assertion is an act by which a person makes himself responsible for the truth of a proposition.
MS [R] 599:5
‘Assertion’ (pub. 19.01.15-12:14). 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-reasons-rules-0.