Quotes from a brilliant mathematician, and related:
[M]y objectivistic conception of mathematics and metamathematics in general, and of transfinite reasoning in particular, was fundamental also to my other work in logic.
How indeed could one think of expressing metamathematics in the mathematical systems themselves, if the latter are considered to consist of meaningless symbols which acquire some substitute of meaning only through metamathematics? [emphasis his] [8–9]
How can one expect to solve mathematical problems by mere analysis of the concepts occurring, if our analysis so far does not even suffice to set up the axioms? [110]
What I call the theological worldview is the idea that the world and everything in it has meaning and reason, and in particular a good and indubitable meaning. It follows immediately that our worldly existence, since it has in itself at most a very dubious meaning, can only be means to the end of another existence. The idea that everything in the world has a meaning [reason] is an exact analogue of the principle that everything has a cause, on which rests all of science. [217]
I don't see a single equation, axiom, definition, or proof in this quote or the website linked.
Newtonian physics is wrong, this quote has turned out to be wrong.
Most of his musings have turned out to be false with the passage of time and advancement in the physical sciences.
Here is one the OP should take to heart.
And again, this page has no math whatsoever. Quotes from a mathematician, who was wrong about a great many predictions, are not math.