爱因斯坦与刮胡刀
My father was a close friend of Albert Einstein.As a shy young visitor to Einstein's home,I was made to feel at ease when Einstein said,"I have something to show you."He went to his desk and returned with a Yo-Yo.He tried to show me how it worked but he couldn't make it roll back up the string.When my turn came,I displayed my few tricks and pointed out to him that the incorrectly looped string had thrown the toy off balance.Einstein nodded,properly impressed by my skill and knowledge. Later,I bought a new Yo-Yo and mailed it to the Professor as a Christmas present ,and received a poem of thanks. To do his work he needed only a pencil and a pad of paper.Material things meant nothing to him.I never knew him to carry money because he never had any use for it . He believed in simplicity,so much so that he used only a safety razor and water to shave.When I suggested that he try shaving cream, he said,"The razor and water do the job." "But Professor,why don't you try the cream just once?"I argued."It makes shaving smoother and less painful." He shrugged.Finally,I presented him with a tube of shaving cream.The next morning when he came down to breakfast,he was beaming with the pleasure of a new,great discovery."You know,that cream really works,"he announced. "It doesn't pull the beard.It feels wonderful."Thereafter,he used the shaving cream every morning until the tube was empty.Then he reverted to using plain water.