Ads of course may exploit these two principles of relevance and presupposition
- Here are two ads that illustrate presupposition
- Now let's consider Grice's maxims of conversational behavior
- These maxims summarize our tacit "contract" when we participate in a conversation or other discourse situation
- Speakers (generally) abide by these principles
- Listeners expect them from the speaker
- All of this happens on a subconscious level
- But when one of these maxims is violated, we notice it and intuitively understand what the other person means anyway, due to our deep-rooted acceptance of these principles.
- Grice's general Cooperative Principle:
Make your contribution [to a conversation] what is expected of you, at the point in the conversation when you make it, in keeping with the purpose or direction of the conversation you are having.
- This can be broken up into 4 maxims or specific practices of conversation, as outlined by Grice in his seminal paper.
A: Where is Professor Fowler's office?
B: Woodburn 218.
A: Where is Professor Fowler's office?
B: I think I'll go to Dagwood's for lunch today.
A: Where is Professor Fowler's office?
B: GISB 4034. You take the elevator to the fourth floor, turn right (and make good and sure you don't turn left, or else you could wind up at the SGIS dean's office. Scary people over there). Anyway, note that you have to be in the east wing of the building, not the west wing. The west wing doesn't even have a fourth floor! Go down the hall and Fowler's office will eventually turn up on the right. He has a double-sized office (boy, isn't he an important fellow!), but they only just gave him the promised furniture for that office after he's been there 9 years! [...]
A: Where is Professor Fowler's office?
B: Latitude 39.1699094 degrees, longitude -86.5172505 degrees, 804 feet above sea level, door faces 4 degrees south of due east.
A: Thanks a bunch, I'll go right there. Just let me get out my GPS device.
A: Where is Professor Fowler's office?
B: Any idiot knows that
| Persuasion | Manipulation | |
| Legitimate purpose of advertising | Illegitimate purpose of advertising | |
| Definition: "move by argument, entreaty, or expostulation to a belief, position, or course of action" | "to control or play upon by artful, unfair, or insidious means especially to one's own advantage" | |
| Cooperative (in the sense of Grice) | Uncooperative | |
| Open, transparent | Indirect, camouflaging its real intentions |