Unless my reason has a source in a supernatural Reason, then there is cause to trust it.
So you would take seriously what monkeys produce? If so, why?
Because a faulty source would seem to produce only a faulty outcome.
“And you will know the truth, and the truth will set you free” (John 8:31). And I think you just proved my point, that unreasoning processes have no interest in giving us a clear perception of reality.