"so as not to be just Grice to your Mill"

Chapman:

describing what she found when she opened each of them (sic) 14 cartons:

"Jottings"

"He was not averse to jotting down 'useful verbiage' (usually in preparation for lectures). In conjunction with some work on the place of value in human nature drawing ON, but diverging from Mill, he notes down the phrase,

"so as not to be just Grice to your Mill"

" (Handwritten version of "Aspects of reason and reasoning", Grice Collection, BANC 90/135c, 1977).

Etc.

This in connection with some idioms or proverbs as literally having meant something. In this case,

to (bring) grist to one's own mill

plus playing with 'your', i.e. thee reader, or ye readers.

and sure to get a laugh.

In a way he was like Flanagan, "It's the greatest of all epitaphs when they say it you did it just for laughs"? Of course not! He was a genius -- and I'm not meaning it takes one to recognise another! :)