I think we agree, regarding scientific truths and also regarding the fact that there are more than just scientific truths. So, I’m going to move on from that point, if that is ok with you. (Don’t want to derail the thread any more than perhaps I already have done!

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Now, regarding “fides et ratio”: First. I assume that this translates to “faith and reason” (Note to Catholics: Don’t assume that non-Catholics are fluent in Latin – it’s best to just translate such phrases into English.) I’ll assume that translation is correct for the rest of this post, but of course if it is incorrect, then you can pretty much disregard this reply.
Regarding faith: I conjecture that this is very much an idea unique to Catholicism and Islam and their various off-shoots and derivatives (Protestantism, Mormonism, etc). I don’t know that faith really has any meaning for most other religions. The concept ‘faith’ makes various assumptions: One is that it is important that you actually believe in a religious truth – a deity may not care whether or not you believe in it or not, or such faith may have no other practical purpose. A deity may not even be conscious so that such caring is even within the scope of its abilities. It also presupposes that ‘faith’ is a reliable means of uncovering truths, and I think it is well-demonstrated that ‘faith’ can be misplaced – surely you agree, as a Catholic. After all, from your perspective, anyone that has faith in Islam, United Methodism, or Mormonism has a misplaced faith. To the questioning non-religious type, ‘faith’ seems a very unreliable concept. It seems arbitrary.
Regarding reason: Yes, I agree that reason (including formal logic) is a legitimate way to uncover non-scientific truths.