Once it happened that Mulla Nasruddin went on his first air trip, and he was afraid but he didn't want anybody to know. It happens to everybody on their first flight: nobody wants this to be their first. He wanted to behave nonchalantly so he walked very bravely. That bravery was an explanation: I always travel by air. Then he sat down in his seat and he wanted to say something just to put himself at ease, because whenever you start talking, you become brave; through talk, you feel less fear.
So Nasruddin spoke to the passenger next to him. He looked out of the window and said, "Look, what terrific height! People look like ants."
The other man said, "Sir, we have not taken off yet. Those are ants."