Grown­ups are often surprised by how well they remember something they learned as children but have never practiced ever since. A man who has not had a chance to go swimming for years can still swim as well as ever when he gets back in the water. He can get on a bicycle after many years and still ride away. He can play catch and hit a ball as well as his son. A mother who has not thought about the words for years can teach her daughter the poem that begins “Twinkle, twinkle, little star” or remember the story of Cinderella or Goldilocks and the Three Bears.

    One explanation is the law of overlearning, which can be stated as follows: Once we have learned something, additional learning trials(尝试)increase the length of time we will remember it.

    In childhood we usually continue to practice such skills as swimming, bicycle riding, and playing baseball long after we have learned them. We continue to listen to and remind ourselves of words such as “Twinkle, twinkle, little star” and childhood tales such as Cinderella and Goldilocks. We not only learn but overlearn.

    The multiplication tables(乘法口诀表)are an exception to the general rule that we forget rather quickly the things that we learn in school, because they are another of the things we overlearn in childhood.

    The law of overlearning explains why cramming(突击学习)for an examination, though it may result in a passing grade, is not a satisfactory way to learn a college course. By cramming, a student may learn the subject well enough to get by on the examination, but he is likely soon to forget almost everything he learned. A little overlearning, on the other hand, is really necessary for one's future development.

    George Bernard Shaw, the greatest and funniest British dramatist of the first half of the 20^th century, was born in Dublin, Ireland on July 26^th, 1856. His early life was not happy. His father was a selfish man who drank too much and could not support his family properly. His mother was a disappointed, unhappy woman who found more pleasure in studying music than in her children. Shaw and his two sisters received little love and attention from their mother while they were young. At the age of ten Shaw entered school. At first he was the best student, but soon he was at or near the bottom of his class.

    Although he did not like school, Shaw was a good, bright, curious student. His lifelong interest in everything from music and art to machines and medicine began at school. The interests of this tireless schoolboy were literature and music. He often entertained his classmates with stories he read.

    Early at the age of fifteen, he went to work in an office. He did well as an office clerk, but after five years he decided that he wanted to be a writer. He left Ireland and went to London, where he began to write seriously. Seventy-four years later the great dramatist died.

    One morning, more than a hundred years ago, an American inventor called Elias Howe finally fell asleep. He had been working all night on the design of a sewing machine but he had run into a very difficult problem: It seemed impossible to get the thread to run smoothly around the needle.

    Though he was tired, Howe slept badly. He turned and turned. Then he had a dream. He dreamt that he had been caught by terrible savages whose king wanted to kill him and eat him unless he could build a perfect sewing machine. When he tried to do so, Howe ran into the same problem as before. The thread kept getting caught around the needle. The king flew into the cage and ordered his soldiers to kill Howe. They came up towards him with their spears raised. But suddenly the inventor noticed something. There was a hole in the tip of each spear. The inventor awoke from the dream, realizing that he had just found the answer to the problem. Instead of trying to get the thread to run around the needle, he should make it run through a small hole in the center of the needle. This was the simple idea that finally made Howe design and build the first really practised sewing machine.

    Elias Howes was not the only one in finding the answer to his problem in this way.

    Thomas Edison, the inventor of the electric light, said his best ideas came into him in dreams. So did the great physicist Albert Einstein. Charlotte Bronte also drew in her dreams in writing Jane Eyre.

    To know the value of dreams, you have to understand what happens when you are asleep. Even then, a part of your mind is still working. This unconscious(无意识的), but still active part understands your experiences and goes to work on the problems you have had during the day. It stores all sorts of information that you may have forgotten or never have really noticed. It is only when you fall asleep that this part of the brain can send messages to the part you use when you are awake. However, the unconscious part acts in a special way. It uses strange images which the conscious part may not understand at first. This is why dreams are sometimes called “secret messages to ourselves”.

My Favourite Books

    Jo Usmar is a writer for Cosmopolitan and co­author of the This Book Will series(系列)of lifestyle books. Here she picks her top reads.

Matilda

Roald Dahl

    I once wrote a paper on the influence of fairy tales on Roald Dahl's writing and it gave me a new appreciation for his strange and delightful words. Matilda's battles with her cruel me parents and the bossy headmistress, Miss Trunchbull, are equally fumy and frightening, but they're also aspirational.

After Dark

Haruki Murakami

    It's about two sisters­Eri, a model who either won't or can't stop sleeping, and Mari, a young student. In trying to connect to her sister. Mari starts changing her life and discovers a world of diverse "night people" who are hiding secrets.

Gone Girl

Gillian Fynn

    There was a bit of me that didn't want to love this when everyone else on the planet did but the horror story is brilliant. There's tension and anxiety from the beginning as Nick and Amy battle for your trust. It's a real whodunit and the frustration when you realize what's going on is horribly enjoyable

The Stand

Stephen King

    This is an excellent fantasy novel from one of the best storytellers around. After a serious flu outbreak wipes out 99.4% of the world's population, a battle unfolds between good and evil among those let. Randall Flagg is one of the scariest characters ever.

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