Natural science (n.) is itself a spiritual accomplishment — so to explain it naturalistically, by its own laws, is absurd and circular.
Natural science (n.) is a triumph of technique whose rationality is of a piece with that of the Egyptian pyramids: it forgets the subject who works it.
Natural science (n.) is by its very essence endlessly hypothetical and endlessly verified: no amount of confirmation ever turns its hypothesis into anything but a hypothesis.
Natural science (n.) is a culture: it belongs only to the surrounding world of the civilization that developed it, and exact nature only to those who understand it.
Natural science (n.) talks sceptically about mathematics while behaving dogmatically through it — and to its own benefit: it grew great by ruthlessly pushing aside ancient scepticism instead of trying to refute it.