In reading a collection of essays by one of my heroes, Thomas Howard, I came across a passage that provides a slightly different perspective on perspective and the maxim: "This also is Thou; neither is this Thou." If you read the last part of the passage carefully, you will see another instance of that approach to reality. The text is The Night Is Far Spent and the following is the first paragraph from"Brideshead Revisited Revisited":
The late Russell Kirk spoke often of "the moral imagination." By it he referred to that whole backdrop, or set of underpinnings, that corroborates for us mortals the fixities of the moral law. We are not angels: hence we do not encounter reality directly. We are protected ("from heaven and damnation," says Eliot) by the merciful arch, or filter, we might say, of the temporal and spatial, which bring with them the forms and colors that address our imaginations. (82)
The book is subtitled, A Treasury of Thomas Howard, selected by Vivian W. Dudro (published by Ignatius Press, 2007), and it is.