Once Einstein gave a lecture in many places in America． His driver
always listened to him and knew the lecture so well that he was sure be
could give it himself． So Einstein agreed that the driver gave the
lecture him．
As nobody knew Einstein there, the driver gave the lecture for Einstein
that evening． At first he was a bit afraid, but Einstein\''s smile made
him feel better． He gave a good lecture and the people were quite
pleased．
Then the driver started to leave and Einstein followed him without a
word． When they got to the door, a man asked the driver a difficult
question．