Albert Einstein gave many lectures on his difficult to grasp theory of relativity. During these lectures, he was always accompanied by his chauffeur, who waited at the back of the room for the evening to end. After some time, the driver said: “Professor Einstein, now I have heard your lecture on the theory of relativity so often that if I ever had the opportunity, I could explain it perfectly myself.” “Very well,” replied an amused Einstein, “next week we’ll go to a place where they don’t know me. Then you can be at the front.” And so it happened. Entering the hall, Einstein took the driver’s cap and sat down at the back. The driver had no problem reciting the lecture on the theory of relativity perfectly, much to Einstein’s delight. After the lecture, an attendee raised his hand and asked him a tricky question, full of complicated calculations and equations. But the driver answered without hesitation: “My dear man, the answer to this question is very simple. So simple, in fact, that I am now asking my driver at the back of the room to answer it!”
