Echoes of Kant in Grice: Quantität, Qualität, Relation, Modalität

-- and there's more: the idea of their being 'categories,' springing from some sort of unifying principle consituted by 'maxims' which can be universalisable! And all in context of a free, good will. I sometimes wonder if Grice's first name should not have been Immanuel, or stuff.