Religion is apodictic. It permits no questioning of its dogma. It is a brake on all thinking, all progress.
It was doubt that made the greatness of the West. Socratean doubt – lost and forgotten for the thousand years of darkness brought down on Europe by Christianity, but revived in the Enlightenment. Doubt is the motor of experimental science.
Here is a minute or so of illumination from the great Richard Feynman. ( A clip from an old video, re-issued this month.)