The bigger the beam of light, the narrower it gets. This is the nature of the pupil of the eye. The similarity between the eye pupil and the bigot or the ignorant mind is appalling. Both contract when they are exposed to light.

What is the difference between scientists and religious people?

Religious people do not accept facts that contradict their beliefs, whereas non-religious often do. The main difference between science and religion is that science accepts mistakes, whilst religion doesn’t.

Attaching blindly to certain beliefs and ideas and showing no flexibility to change is the bigot’s mind.

The more knowledge it receives, the narrower and smaller it gets.