Isaac Newton writes in Mathematical Principles of Natural Philosophy Book
Three System of the World General Scholium:
‘.... He is eternal and infinite, omnipotent and omniscient; that is his
duration reaches from eternity to eternity; his presence from infinity to
infinity; he governs all things and knows all things that are or can be done.
He is not eternity and infinity, but eternal and infinite; he is not duration
or space but he endures and present. He endures forever, and is everywhere
present; and, by existing always and everywhere, he constitutes duration and
space. ... He is omnipresent not virtually only, but also substantially; for
virtue cannot subsist without substance. In him are all things contained and
moved; yet neither affects the other: God suffers nothing from the motion of
bodies; bodies find no resistance from the omnipresence of God. ... he exists
always and everywhere. Whence also he is similar, ...; but in a manner not at
all human, in a manner not at all corporeal, in a manner utterly unknown to us.
... He is utterly void of all body and bodily figure, and can therefore neither
be seen, nor heard, nor touched; ...We have ideas of his attributes, but what
the real substance of anything is we know not. In bodies, we see only their
figures and colors, we hear only the sounds, we touch only their outward
surfaces, we smell only the smells, and taste the savors; but their inward
substances are not to be known either by our senses, or by any reflex act of
our minds ... ; for all our notions of God are taken from the ways of mankind
by certain similitude, which, though not perfect, has some likeness, however.
And thus much concerning God; to discourse of whom from the appearances of
things, does certainly belong to natural philosophy.
... hitherto I have not been able to discover the cause of those properties of
gravity from phenomena, and I frame no hypotheses; for whatever is not deduced
from the phenomena is to be called an hypothesis; and hypotheses, whether
metaphysical or physical, whether of occult qualities or mechanical, have no
place in experimental philosophy. In this philosophy particular propositions
are inferred from the phenomena, and afterwards rendered general by
induction...’
If one reads the above, understanding that God is a human concept and
tries to catch the meaning of this concept - following the above explanation -,
he has to conclude that it is the existence. Newton also made the determination
that it is the real substance of anything, what he is talking about. Now this
only existing substance is always and everywhere and is similar, suffers
nothing from the motion of bodies, eternal and infinite, endures and present,
constitutes duration and space.
Is there a possibility to incorporate such a substance into our
reflection of reality? What if the separated from any form, pure existence is
represented by something (rather no-thing) in the nature, could we describe it?
Practically Newton gave the answer to it: eternal and infinite. Ever existing
elements with infinitely high speed can penetrate any place for an infinitely
small duration and if these elements collide with an other similar element they
constitute an event and a location. This event is followed by nothing, which
followed by an other event (constituting duration) and if these chains of
events (and separators between them) are preserved (constituting space), we may
even know about them, these could construct the things. The only assumption one
has to make that the colliding elements suffer a direction change in the
collision, and we get a possibility of self-organization, so the chains of
events could preserve themselves.
The following from this understanding reflection of reality, the cause of
gravity and the meaning of our space, time and mass concepts, meaning and
differences of the fields and the elements of interactions through the fields,
structure of the nuclides of atoms (which fits very well to the observed
abundances of isotopes) you could see here.