Many people have the reasoning facility, but no one uses it in religious matters.
The cat, having sat upon a hot stove lid, will not sit upon a hot stove lid again. Nor upon a cold stove lid.
The old saw says - 'Let a sleeping dog lie.' Experience knows better; experience says, If you want to convince do it yourself.
Don't let schooling interfere with your education.
...fry me an optimist for breakfast.
That is a simple rule, and easy to remember. When I, a thoughtful and unblessed Presbyterian, examine the Koran, I know that beyond any question every Mohammedan is insane; not in all things, but in religious matters.