If I may interject myself back into the conversation, I thought I'd go more or less on birdjaguar's side.
I contend here that we have
no reason to believe that scientific reasoning tells us any more (or any less) about our world than any other form of reasoning (emotional, spiritual, etc.)
I challenge Perfection (or anybody else) to give me a firm foundation for the legitimacy of scientific (inductive) reasoning. Specifically, I'm talking about The Problem of Induction. Without a solution to this problem, we have no reason whatsoever (that isn't rested on fallacious reasoning or unfounded assumptions) to beleive that scientific reasoning is any more accurate or applicable or reasonable than any other form of reasoning.
EDIT: While I'm attacking scientific reasoning, why not add mathematical!?!?!?!?!?
Deductive mathematical reasoning, even with preselected axioms, is just as arbitrary as Inductive scientific reasoning, because Deductive reasoning rests on the consistency and legitimacy of deductive logic at each use of it, which is itself an application of inductive reasoning, which is undermined by the Problem of Induction. So even math isn't safe!!
EDIT2: I should add the caveat that, for me at least, this is a foundational discussion. On a superficial level, logic is simply the study of what is good reasoning and what is bad reasoning. Hence, any form of thinking that leads to a desired result IS a logical process of reasoning, even if it seems superficially to be emotional or spiritual reasoning. The only time that an illogical decision can prove correct is when we win at against the odds, which is luck rather than any form of reasoning. Using one of BJ's earlier examples, the charasmatic leader is indeed more logical than the "spock" character, because a charasmatic leader will use inductive logic to realize that utilizing certain personality traits tends to lead to better results than a monotonous and mechanistic method. So just because something is charismatic, emotional, spiritual, etc., does NOT mean that it is not logical at its core.
My point above is that on a foundational level, all reasoning is equally arbitrary.