From the very beginning of school we make books and reading a constant source of possible failure and public humiliation. When children are little we make them read aloud, before the teacher and other children, so that we can be sure they “know” all the words they are reading. This means that when they don't know a word, they are going to make a mistake, right in front of everyone. After having taught fifth-grade classes for four years, I decided to try at all costs to rid them of their fear and dislike of books, and to get them to read oftener and more adventurously.

         One day soon after school had started, I said to them, “Now I'm going to say something about reading that you have probably never heard a teacher say before. I would like you to read a lot of  books this year, but I want you to read them only for pleasure. I am not going to ask you questions to find out whether you understand the books or not. If you understand enough of a book to enjoy it and want to go on reading it, that's enough for me. Also I'm not going to ask you what words mean. “

        The children sat stunned and silent. Was this a teacher talking? One girl, who had just come to us from a school where she had had a very hard time, looked at me steadily for a long time after I had finished. Then, still looking at me, she said slowly and seriously, Mr Holt, do you really mean that?” I said just as seriously, “I mean every word of it.

During the spring she really astonished me. One day, she was reading at her desk, From a glimpse of the illustrations I thought I knew what the book was. I said to myself, “It can't be,” and went to take a closer look. Sure enough, she was reading Moby Dick , in edition with woodcuts. I said, “Don't you find parts of it rather heavy going?” She answered, Oh, sure, but I just skip over those parts and go on to the next good part. “

        This is exactly what reading should be and in school so seldom is, an exciting, joyous adventure. Find something, dive into it, take the good parts, skip the bad parts, get what you can out of it, go on to something else. How different is our mean-spirited, picky insistence that every child get every last little scrap of “understanding” that can be dug out of a book.

    A rabbit and two ducks were good friends. They used to meet on the bank of a river and play together. One day the ducks told the rabbit that they had found a carrot farm on the other bank of the river. The rabbit was excited and quickly asked for the help of his friends to cross the river, reach the farm and enjoy the carrots. The ducks agreed to carry him across the river.

    They made a wonderful plan to cross the river. The two ducks entered the river and stayed close to each other. The rabbit carefully got on their backs and stayed still. Then the ducks slowly swam across the river, staying close to each other. The rabbit cautiously stayed on top of the moving birds.

    Right before they reached the center of the river, the ducks suddenly saw a large number of fishes swimming together. In the excitement of finding a delicious meal in the water, the ducks quickly swam to either side to catch the fishes. They forgot about the poor rabbit on their backs, who fell down into the deep river as the ducks moved away. The ducks remembered their job only after they finished their meal. However, by that time the poor rabbit had already drowned (淹死). The foolish ducks were sorry to miss their good friend.

    From this short story, we know love should not be just words and talk; it must be true love, which is shown it in action.

    You often can choose a private setting when you browse(浏览) the internet. But be forewarned: It may not afford nearly as much privacy as you expect. That's the finding of a new study.

    Major web browsers, such as Google's Chrome and Apple's Safari, often a private-browsing option. It's sometimes referred to as “incognito.” This option lets you surf the Internet browser and saves a record into its history of each page that you visited. And what sites you visit won't affect the suggestions your browser makes the next time you're filling out an online form.

Many people believe—incorrectly— that the incognito setting protects them more broadly. Most believe it even after reading a web browser's explanation of the incognito mode.

    For instance, a new study had 460 people read web browsers' descriptions of private browsing. Each person read one of 13 descriptions. Then the participants answered questions about how private they thought their browsing would be while using this tool. The volunteers didn't understand the incognito mode. This was true no matter which browser explanation they had read. The researchers reported their findings on April 26 at the 2018 World Wide Web Conference in Lyon, France.

    More than half of the volunteers thought that if they logged into a Google account through a private window, Google wouldn't keep a record of their search history. Not true. And about one in every four participants thought private browsing hid their device's IP address. That's wrong, too.

    Blase Ur was one of the study's authors. He's an expert in computer security and privacy in Illinois at the University of Chicago. Companies could clear up this confusion by giving better explanations of the incognito mode, his team says. For example, the browsers should avoid vague（模糊).The web browser Opera, for instance, promises users that “your secrets are safe.” Nope Firefox encourages users to “browse like no one's watching.” In fact, someone might be. (If you'd like to know more about the research information, please click here.)

    My teenage son Karl became withdrawn after his father died. As a single parent, I tried to do my best to talk to him. But the more I tried, the more he pulled away. When his report card arrived during his junior year, it said that he had been absent 95 times from classes and had six falling grades for the year. At this rate he would never graduate. I sent him to the school adviser, and I even begged him. Nothing worked.

    One night I felt so powerless that I got down on my knees and begged for help. "Please God, I can't do anything more for my son. I'm at the end of my rope. I'm giving the whole thing up to you."

    I was at work when I got a phone call. A man introduced himself as the headmaster. "I want to talk to you about Karl's absences." Before he could say another word, I cried and all my disappointment and sadness over Karl came pouring out into the ears of this stranger. "I love my son but I just don't know what to do. I've tried everything to get Karl to go back to school and nothing has worked. It's out of nay hands. "For a moment there was silence on the other end of the line. The headmaster seriously said, "Thank you for your time", and hung up.

    Karl's next report card showed a marked improvement in his grades. Finally, he even made the honor roll. In his fourth year, I attended a parent-teacher meeting with Karl. I noticed that his teachers were astonished at the way he had turned himself around. On our way home, he said, "Mum, remember that call from the headmaster last year?" I nodded. "That was me. I thought I'd play a joke but when I heard what you said, it really hit me how much I was hurting you. That's when I knew I had to make you proud."

    Your next Saturday night takeaway could be brought to you by a robot after a major food delivery company announced plans to use automated vehicles to transport meals. Europe's biggest online takeaway food company Just Eat has partnered with Starship Technologies to deliver food with robots on the streets of London later this month. "Nobody has ever done deliveries with land-based robots," said Allan Martinson, the chief operating officer of Starship.

    The robot courier can travel up to 4 miles per hour for about 10 miles. It uses a GPS signal and nine cameras to navigate (确定方向). Instead of a person arriving at their door, customers could find themselves receiving a notification on their phone that says a robot is on its way and a code to unlock the automated courier. "Put the code in, the robot opens up, and there's your food," said David Buttress, chief manager of Just Eat.

    The robot, which has so far been tested in Greenwich, Milton Keynes and Glastonbury, costs £ 1 to transport within 3 miles, compared with the £3 to £6 it costs for a human courier. To date 30 robots have driven nearly 5,000 miles without getting into an accident or finding themselves picked on by passers-by. They have driven in more than 40 cities around the world, including London and Tallinn, Estonia.

    An initial worry was how the public would react to robots. But Martinson said the public has been calm when passing the delivery machine on the streets. "The most surprising reaction has been the lack of reaction," said Martinson.

    Another significant fear was that people would disrupt (扰乱) the robots, or try to steal them and their contents. To prevent this, the robot is fitted with nine cameras, two way audio, and movement sensors that send a warning if it is lifted off the ground. And it opens only with a passcode provided to the customer via a notification. "It's much easier to shoplift than it is to steal a robot," said Martinson.

    Fred Rogers was a curious man, six feet tall and without pretense (虚伪). He liked to pray, to play the piano, to swim, and to write, and he somehow lived in a different world than I did. We became friends for some 20 years, and I made lifelong friends with his wife, Joanne. I remember thinking that it seemed as if Fred had access to another realm (领域) like the way pigeons have some special magnetic compass that helps them find home.

    Fred died in 2003, somewhat quickly, of stomach cancer. He was 74. "Just don't make Fred into a saint (圣人)," That has become Joanne's refrain (叠句). 91 now, still full of energy, she lives alone in the same roomy apartment, in the university section of Pittsburgh, that she and Fred moved into after they raised their two boys. Throughout her 50-year marriage to Fred, she wasn't the type to hang out on the set or attend production meetings. That was Fred's thing. He had his career, and she had hers as a concert pianist. For decades she toured the country with her college classmate, Jeannine Morrison, as a piano duo; they didn't retire the performance until 2008.

    "If you make him out to be a saint, people might not know how hard he worked," Joanne said. Disciplined, focused; a perfectionist — an artist. That was the Fred she and the cast and crew knew. "I think people think of Fred as a child-development expert," David Newell, the actor who played Mr. "Speedy Delivery" McFeely, told me recently. "As a moral example maybe. But as an artist? I don't think they think of that." that was the Fred I came to know. Creating, the creative impulse (冲动), and the creative process were our common interests. He wrote or co-wrote all the scripts for the program — all 33 years of it. He wrote the melodies. He wrote the lyrics. He structured a week of programming around a single theme, many of them difficult topics, like war, divorce, or death.

    I don't know that he cared whether people saw him as an artist. He seemed more intent (急切的) that people not see him at all. The focus was always on you. Or children. Or the tiny things. It was hard to see Fred.

    I like you just the way you are. One day he told me where that core message came from. His grandfather, Fred Brooks McFeely, who like the rest of the Rogers family lived in Latrobe, Pennsylvania, about 40 miles east of Pittsburgh. "He was a character," he said. "Oh, a lot of me came from him."

    His grandfather represented a life of risk and adventure, the very things Fred's boyhood lacked. He was a lonely kid, an only child until he was 11, when his sister came. He was bullied. Here comes Fat Freddie! He was sickly. He had asthma. He was not allowed to play outside by himself. He spent much of his childhood in his bedroom.

    He had music, and he had puppets to keep himself amused. He didn't need much. He was expected to fill his father's shoes, become his business partner at the brick company. "My dad was pretty much Mr. Latrobe," he told me. "He worked hard to accomplish all that he did, and I've always felt that that was way beyond me. And yet I'm so grateful that he didn't push me to do the kinds of things that he did or to become a miniature (缩小的) version of him. It certainly would have been miniature."

    Fred wanted to be like his grandfather. "He taught me all kinds of really neat stuff!" he told me. "I remember one day my grandmother and my mother were telling me to get down, or not to climb, and my grandfather said: ‘Let the kid climb on the wall! He's got to learn to do things for himself!' I heard that. I will never forget that. What a support that was. He had a lot of stone walls on his place." "I think it was when I was leaving one time to go home after our time together," Fred told me, "that my grandfather said to me: ‘You know, you made this day a really special day. Just by being yourself. There's only one person in the world like you. And I happen to like you just the way you are."