"The allusion to 'the most precious square of sense' shows
Shakespeare doing an almost scholastic demonstration of
the need for a ratio and interplay among the senses as
the very constitution of rationality."
— Marshall McLuhan, The Gutenberg Galaxy ,
University of Toronto Press, 1962, page 13
"What Shakespeare refers to in Lear as the 'precious
square of sense' probably has reference to the traditional
'square of opposition' in logic and to that four-part analogy
of proportionality which is the interplay of sense and reason."
— McLuhan, ibid. , page 241
This is of course nonsense, and, in view of McLuhan's pose
as a defender of the Catholic faith, damned nonsense.
Epigraph by McLuhan —
"The Gutenberg Galaxy develops a mosaic or field
approach to its problems."
I prefer a different "mosaic or field" related to the movable
blocks of Fröbel, not the movable type of Gutenberg.