“Faculty X is simply that latent power in human beings possess to reach beyond the present.”

Draft for a Statement of Human Obligation (1943)
Context: If anyone possesses this faculty, then his attention is in reality directed beyond the world, whether he is aware of it or not.
The link which attaches the human being to the reality outside the world is, like the reality itself, beyond the reach of human faculties. The respect that it makes us feel as soon as it is recognized cannot be shown to us by evidence or testimony.

Draft for a Statement of Human Obligation (1943)
Context: There is a reality outside the world, that is to say, outside space and time, outside man's mental universe, outside any sphere whatsoever that is accessible to human faculties.
Corresponding to this reality, at the centre of the human heart, is the longing for an absolute good, a longing which is always there and is never appeased by any object in this world.
Another terrestrial manifestation of this reality lies in the absurd and insoluble contradictions which are always the terminus of human thought when it moves exclusively in this world.
Just as the reality of this world is the sole foundation of facts, so that other reality is the sole foundation of good.
That reality is the unique source of all the good that can exist in this world: that is to say, all beauty, all truth, all justice, all legitimacy, all order, and all human behaviour that is mindful of obligations.
Those minds whose attention and love are turned towards that reality are the sole intermediary through which good can descend from there and come among men.
Although it is beyond the reach of any human faculties, man has the power of turning his attention and love towards it.
Nothing can ever justify the assumption that any man, whoever he may be, has been deprived of this power.
It is a power which is only real in this world in so far as it is exercised. The sole condition for exercising it is consent.
This act of consent may be expressed, or it may not be, even tacitly; it may not be clearly conscious, although it has really taken place in the soul. Very often it is verbally expressed although it has not in fact taken place. But whether expressed or not, the one condition suffices: that it shall in fact have taken place.
To anyone who does actually consent to directing his attention and love beyond the world, towards the reality that exists outside the reach of all human faculties, it is given to succeed in doing so. In that case, sooner or later, there descends upon him a part of the good, which shines through him upon all that surrounds him.

Source: Memoirs of a Superfluous Man (1943), p. 39
Context: Reading implies a use of the reflective faculty, and very few have that faculty developed much beyond the anthropoid stage, let alone possessing it at a stage of development which makes reading practicable.
As I said, the fact that few literate persons can read is easily determinable by experiment. What first put me on track of it was a remark by one of my old professors. He said that there were people so incompetent, so given to reading with their eyes and their emotions instead of with their brains, that they would accuse the Psalmist of atheism because he had written, "The fool hath said in his heart, There is no God." The remark stuck by me, and I remember wondering at the time whether the trouble might be that such people hardly had the brains to read with. It seemed possible.

Collages (1964), p. 116
Context: Human beings can reach such desperate solitude that they may cross a boundary beyond which words cannot serve, and at such moments there is nothing left for them but to bark.

p, 125
Spiritualism and the Christian Faith (1918)

On instrumental music, page 2 https://books.google.com/books?id=pQARAAAAIAAJ&pg=PA2.
Music: An Art and a Language (1920), Preliminary Considerations (Ch. I)

Message to woman suffrage supporters (c. 1875)
1870s

Source: The Gunslinger

Cited in: John Zeisel (1984) Inquiry by design: tools for environment-behavior research. p. 3
1960s - 1970s, The Design of Inquiring Systems (1971)