Jenny Miller was a strange little girl. She liked to spend her time alone eating chocolate. Her parents were worried, so they took all the chocolate away.

    Jenny left her house to look for some chocolate. She found a small house full of glasses.

    Among all the glasses, a blue glass caught Jenny's attention. It was full of chocolate. There was also a card in it, saying," Change tears into chocolate. "

    Jenny was very excited. She took the blue glass and ran out of the house to look for someone crying. First, she met a little boy crying hard, and she collected his tears. The tears were quickly changed into chocolate. While Jenny was collecting the tears, she comforted(安慰)the boy. Finally, the boy stopped crying and they had a fun time together.

    Later, Jenny met a woman who had broken some plates and an old man who couldn't find his dog. They were so sad that their tears could not help falling down. Jenny collected their tears and made them happy again.

    Soon, Jenny realized that making people happy was even more important than finding chocolate. So she stopped collecting tears and began to help sad people. As a result, she became friend with them and lived a much happier life than before.

    One morning I met a man in my shop. He wanted to buy some new clothes. First I gave him a pair of trousers. He put them on to try, then ________ and gave them back to me and said, "No, give me a coat instead of them." I gave him a coat and told him, "This one is worth as much as the trousers." To my surprise he took the coat without saying a word and walked out of the shop with it. I ran quickly after him and said, "You haven't paid for that coat!" "But I gave you the trousers for the coat," he said. "They are worth (相当于……的价值) the same as the coat, aren't they?" "Yes," I said. "You didn't pay for the trousers, either!" "Of course I didn't!" answered the man, "I didn't take them. I am not foolish! Nobody gives things back and then pays for them."

    Kathy could still remember the night she had to leave her home in Hungary. It was the beginning of World War II and her family had to leave their country as soon as possible. She quickly filled a bag with a few pieces of clothing, her diary, and her treasure—a beautiful silk scarf.

    Kathy and her best friend, Monica, had asked their parents to buy them matching scarves. They each would wear the scarves as a symbol of their friendship. Kathy had no idea that she was going to America that night and would not be returning.

    Kathy kept that special silk scarf for many years. One day she decided to give it to her granddaughter, Eliza, to wear to her first job interview for good luck. Kathy was afraid that Eliza would lose the scarf, but the granddaughter promised, "Don't worry, Grandma, nothing's going to happen to your scarf. You'll see. It is going to bring both of us luck today." And with that, Eliza kissed her grandmother and left for the interview.

    That afternoon Eliza left the interview, feeling sure that she had got the job. So she decided to celebrate by going to a restaurant. As she was sitting at her table, she felt someone looking at her. Sitting next to her was an old woman, who could not take her eyes away from her.

    "I'm sorry, do I know you?" Eliza asked.

    "I'm sorry, dear, but you make me think of someone I once knew," the old woman replied. "My best friend looked like you and used to wear a scarf just like the one you're wearing around your neck." Eliza listened carefully, with her eyes and mouth wide open. She had heard stories of her grandmother's best friend and knew the meaning of the scarf. Could this be Monica, her grandmother's childhood friend?

    Eliza introduced herself and waited to hear the name of the other woman.

    "My name's Monica, dear. I lived in Hungary as a child, but my family had to leave when I was fourteen years old. I've been living here in California ever since." said the old woman.

    Eliza could not believe her ears …

    Facebook says it is working on technology to allow us to control computers directly with our brains. It is developing "silent speech" software to allow people to type at a rate of 100 words per minute, it says. The project, in its early stages, will require new technology to detect brainwaves without needing invasive operation. "We are not talking about monitoring your random thoughts," assured Facebook's Regina Dugan. "You have many thoughts, and you choose to share some of them. We're talking about monitoring those words. A silent speech interface(界面) — one with all the speed and flexibility(灵活) of voice. "

Ms Dugan is the company's head of Building 8, the firm's hardware research lab. The company said it intends to build both the hardware and software to achieve its goal, and has employed a team of more than 60 scientists and academics to work on the project.

On his Facebook page, Mark Zuckerberg added, "Our brains produce enough data to stream four HD(高清) movies every second. The problem is that the best way we have to get information out into the world-speech can only send about the same amount of data as a 1980s modem. We're working on a system that will let you type straight from your brain about five times faster than you can type on your phone today. Finally, we want to turn it into a wearable technology that can be produced in quantity. "

Technology is going to have to get a lot more advanced before we can share a pure thought or feeling, but this is a first step. Other ideas detailed at the company's developers conference in San Jose included work to allow people to "hear" through skin. The system, comparable to Braille, uses pressure points on the skin to pass information. "One day, not so far away, it may be possible for me to think in Chinese, and you to feel it instantly in Spanish," Ms Dugan said.