Einstein cared little for money.He once refused to speak on the radio for $1,000 a minute.Another time he was seen using a check for $1,500 as a bookmark.Then he lost the book! Besides his work in physics，he spent much time working for human rights and progress. Like many scientists，Einstein loved music；he played the violin fairly well.In Princeton，he lived quietly，working at the institute and enjoying himself by playing his violin in his simple home.Often there were visitors like the twelve-year-old girl who，for a time，formed the habit of visiting him on her way home from school.After some time，the puzzled mother of the girl met Dr.Einstein and asked him what he and her daughter talked about.The doctor smiled and explained，“Oh，she brings me cookies，and I do her arithmetic(算术) homework for her.” Such was Albert Einstein，a simple man of great achievements.