HERBERT PAUL GRICE, "LOGIC AND CONVERSATION: THE OXFORD LECTURES ON 'IMPLICATURE'," predating the William James Lectures -- THE PRINCIPLE OF CONVERSATIONAL SELF-LOVE AND THE PRINCIPLE OF CONVERSATIONAL BENEVOLENCE -- BANC MSS 90/135c

Speranza

To cooperate, for a conversationalist, does NOT amount to relinquishing his own interests.

Under this guise, cooperative interactions are therefore always also partially 'tactical'.

Grice is certainly aware of this conflict, to the point that in his Oxford lectures on "Logic and Implicature," where he introduced 'implicature' as a term of art, Grice argues that conversational moves are constantly to be weighed against two fundamental and sometimes competitive demands: the principle of conversational self-love (self-oriented) and the principle of conversational benevolence (other-oriented).

The principle of conversational self-love ensures the assumption on the part of both co-conversationalists that neither will go to unnecessary trouble in framing his contribution.