The brain

[Mystic]

That shows it's circular, but, I will get what you are looking for.   Science provides workable theories with data, it never can prove them.

That, my bolded, is a corollary to the fact that only logic and mathematics lend themselves to proof.  What scientific theories do is present explanations which fit all the available data.  Since science is entirely about empirical matters, what more do we need?

A lot more.  They present explanations - but there is multiple other explanations equally as plausible.  And available data or selected data from available data, that is debatable. And interpretation and perspective is key in all this.