Teacher: Can you see God?
Class: No
Teacher: Can you touch God?
Class: No
Teacher: Then there isn't a God!
... ... ... ... ... *Student raises their hand*
"Sir, can you see your brain?"
Teacher: No
Student: Can you touch your brain?
Teacher: No
Student: oh okaay, so you don't have a brain!?
The answer the student gave is food for thought for the teacher. God exist!