An old man sitting with his 25-year-old son in the train. The train is about to move, all the passengers already take their seats. As the train departed, the young boy was full of joy and curiosity. He sat next to the window. He staged his hand out the window and feeling the breeze shouted: - "Dad see all the trees are behind us". The old man smiled. Opposite them sat a young couple who saw it all began to look with pity on the 25-year-old boy who behaved like a little child. Suddenly, the boy shouted again: - "Dad see clouds follow along with us! You see the pond and animals? "Couple looked at the boy with embarrassment. It started raining and the rain brushed his hand. This, full of joy closed his eyes. After a moment, he shouted again: - "Dad started to rain, I have a drop of water on hand, see Dad!". This time the pair have not durable and said to his father: - "Why do not you take your son to a good doctor?" The old man smiled and said: "I've already done - just back from the hospital. My son regained his sight today - see for the first time in his life. "Before you judge a man, and you evaluate it, you should first know its history