This is, perhaps, the most frequent logical error of humans, especially intellectuals, to present an assumption as an empirical finding. It is the reason why scientists, especially biologists, are so often atheists – science rules-out divine explanations as an assumption of science; but scientists learn this assumption as a habit, and mistake it for a discovery of science.
via Bruce Charlton’s Miscellany: Miracles, history and religion. (In the comments.)