What is mind? No matter.
What is matter? Never mind.

Physics is not a religion. If it were, we'd have a much easier time
raising money.

... that, in a few years, all great physical constants will have been
approximately estimated, and that the only occupation which will be left to
men of science will be to carry these measurements to another place of
decimals.
James Clerk Maxwell

A physicist is an atom's way of knowing about atoms. - George Wald

Physics is becoming so unbelievably complex that it is taking longer and
longer to train a physicist. It is taking so long, in fact, to train a
physicist to the place where he understands the nature of physical problems
that he is already too old to solve them.
-- Eugene Wigner