An old man went to the college that he went to when he was a youth. He knocked on room number 3 of the hostel and said: “May I come in. I lived in this very room forty years ago when I studied in this college”. A young man opened the door and let him in. The old man examined the room, fondly remembering everything. He said, “The same old room, the same old wooden table, the ventilator and the same old window that opens to the garden. And the same old bed.” When examining it he found a young