The dead do not know how the living act, for the life of the spirit is far from the life of the flesh
 Thomas Aquinas, Summa Theologica (1274). copy citation

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Author Thomas Aquinas
Source Summa Theologica
Topic spirit life
Date 1274
Language English
Reference
Note Translated by Fathers of the English Dominican Province
Weblink http://www.gutenberg.org/cache/epub/17611/pg17611-images.html

Context

“Now the souls departed are in a state of separation from the living, both by Divine order and by their mode of existence, whilst they are joined to the world of incorporeal spiritual substances; and hence they are ignorant of what goes on among us. Whereof Gregory gives the reason thus: "The dead do not know how the living act, for the life of the spirit is far from the life of the flesh; and so, as corporeal things differ from incorporeal in genus, so they are distinct in knowledge" (Moral. xii) . Augustine seems to say the same (De Cura pro Mort. xiii) , when he asserts that, "the souls of the dead have no concern in the affairs of the living."” source