A 24-year-old boy seeing from the train's window shouted,

"Dad, look the trees are going behind!"

Dad smiled and a young couple, sitting nearby, look at the 24-year-old's chidish behavior with pity. Suddenly he again exclaimed,

"Dad, look the clouds are running with us!"

The young couple couldn't resist and said to the old man, 

"why don't you take your son to a good doctor?"

The old man smiled and  said, "I did and we are just coming from the hospital. My son was blind from birth. He just got his eyes today.

Every single person on the planet has a story. Don't judge person before you truly know them, the truth might supprise you.