“A glimpse heavenward at a constellation or even at a single star only suggests infinity; actually our vision is limited. We cannot perceive unlimited space; it is immeasurable. The universe, as we know it through our visual experience, is limited. It first came into existence with the formation of matter, and will end with the complete dissolution of matter.<!-- I TRIMMED this portion to simply cut down a little on quotes from this one essay. ~ 2009·03·21 02:36 Kalki} Where there is matter and action, there is space. Pictorial space exists two dimensionally. When the two dimensionality of a picture is destroyed, it falls into parts — it creates the effect of a naturalistic space. When a picture conveys only naturalistic space, it represents a special case, a portion of what is felt about three-dimensional experience. This expression of the artist’s experience is thus incomplete.”

Conversations with History interview (1999)

"Introductory" in The Physical Principles of the Quantum Theory (1930) as translated by Carl Eckhart and Frank C. Hoyt, p. 10
Context: Light and matter are both single entities, and the apparent duality arises in the limitations of our language. It is not surprising that our language should be incapable of describing the processes occurring within the atoms, for, as has been remarked, it was invented to describe the experiences of daily life, and these consist only of processes involving exceedingly large numbers of atoms. Furthermore, it is very difficult to modify our language so that it will be able to describe these atomic processes, for words can only describe things of which we can form mental pictures, and this ability, too, is a result of daily experience. Fortunately, mathematics is not subject to this limitation, and it has been possible to invent a mathematical scheme — the quantum theory — which seems entirely adequate for the treatment of atomic processes; for visualisation, however, we must content ourselves with two incomplete analogies — the wave picture and the corpuscular picture.

Source: What On Earth Is About To Happen… For Heaven’s Sake? (2013), pp. 6-7

The System of the World (1800)

So long as we continue to raise more men who demand more food and clothes and fuel, we are subject to the limitations of the material universe, and what we get ever costs us more and benefits us less. But when we cease to demand more, and begin to demand better, commodities, more delicate, highly finished and harmonious, we can increase the enjoyment without adding to the cost or exhausting the store. What artist would not laugh at the suggestion that the materials of his art, his colours, clay, marble, or what else he wrought in, might fail and his art come to an end? When we are dealing with qualitative, i.e. artistic, goods, we see at once how an infinite expenditure of labour may be given, an infinite satisfaction taken, from the meagrest quantity of matter and space. In proportion as a community comes to substitute a qualitative for a quantitative standard of living, it escapes the limitations imposed by matter upon man. Art knows no restrictions of space or size, and in proportion as we attain the art of living we shall be likewise free.
The Evolution of Modern Capitalism: A Study of Machine Production (1906), Ch. XVII Civilisation and Industrial Development

Letter to Morton Kelsey (1958) as quoted by Morton Kelsey, Myth, History & Faith: The Mysteries of Christian Myth & Imagination (1974) Ch.VIII

Kosmos (1932)

As quoted in Pontifical Science Academy http://www.ewtn.com/library/ISSUES/STELLAR.TXT

The Other World (1657)
Context: As God has made the soul immortal, he has made the universe infinite, if it is true that eternity is nothing other than unlimited duration and infinity is space without limits. Suppose the universe were not infinite: God himself would be finite, because he could not be where there is nothing, and he could not increase the size of the universe without adding to his own size and come to be where he had not been before.