One day, a teacher came to class and asked the students, “Tell me, what is the fastest thing in the world?”One student said, “The plane is the fastest.” Another said, “Light travels the fastest.” Someone said, “The Internet,” and someone else said, “Rocket.” The teacher listened carefully to everyone. Then he asked a calm student, “What do you think?”The student laughed and said, “Sir, the fastest thing is vacation!”The teacher was surprised and asked the reason, and the student said, “Because we leave the classroom in an instant as soon as the vacation bell rings.”The whole class burst into laughter after hearing the student’s funny answer. The teacher also laughed and said, “Your joy is your strength. But you have to be focused while studying.”