A new commodity brings about a highly profitable, fast-growing industry, urging antitrust（反垄断）regulators to step in to check those who control its flow. A century ago ,the resource in question was oil. Now similar concerns are being raised by the giants（巨头）that deal in data, the oil of the digital age. The most valuable firms are Google, Amazon, Facebook and Microsoft. All look unstoppable.
        Such situations have led to calls for the tech giants to be broken up. But size alone is not a crime, The giants' success has benefited consumers. Few want to live without search engines or a quick delivery, Far from charging consumers high prices, many of these services are free (users pay, in effect, by handing over yet more data). And the appearance of new-born giants suggests that newcomers can make waves, too.
        But there is cause for concern. The internet has made data abundant, all-present and far more valuable, changing the nature of data and competition. Google initially used the data collected from users to target advertising better. But recently it has discovered that data can be turned into new services: translation and visual recognition, to be sold to other companies. Internet companies' control of data gives them enormous power. So they have a “God's eye view” of activities in their own markets and beyond.
        This nature of data makes the antitrust measures of the past less useful. Breaking up firms like Google into five small ones would not stop remaking themselves: in time, one of them would become great again. A rethink is required—and as a new approach starts to become apparent, two ideas stand out.
        The first is that antitrust authorities need to move form the industrial age into the 21st century. When considering a merger(兼并),for example, they have traditionally used size to determine when to step in. They now need to take into account the extent of firms' data assets(资产) when assessing the impact of deals. The purchase price could also be a signal that an established company is buying a new-born threat. When this takes place, especially when a new-born company has no revenue to speak of, the regulators should raise red flags.
        The second principle is to loosen the control that providers of on-line services have over data and give more to those who supply them. Companies could be forced to consumers what information they hold and how many money they make from it. Governments could order the sharing of certain kinds of data, with users' consent.
        Restarting antitrust for the information age will not be easy But if governments don't wants a data economy by a few giants, they must act soon.

    Elizabeth Freeman was born about 1742 to African American parents who were slaves. At the age of six months she was acquired, along with her sister, by John Ashley, a wealthy Massachusetts slaveholders. She became known as “Mumbet” or “Mum Bett.”

    For nearly 30 years Mumbet served the Ashley family. One day, Ashley's wife tried to strike Mumbet's sister with a spade. Mumbet protected her sister and took the blow instead. Furious, she left the house and refused to come back. When the Ashleys tried to make her return, Mumbet consulted a lawyer, Theodore Sedgewick. With his help, Mumbet sued(起诉) for her freedom.

While serving the Ashleys, Mumbet had listened to many discussions of the new Massachusetts constitution. If the constitution said that all people were free and equal, then she thought it should apply to her. Eventually, Mumbet won her freedom—- the first slave in Massachusetts to do so under the new constitution.

    Strangely enough, after the trial, the Ashleys asked Mumbet to come back and work for them as a paid employee. She declined and instead went to work for Segdewick. Mumbet died in 1829, but her legacy lived on in her many descendants(后裔). One of her great-grandchildren was W.E.B. Du Bois, one of the founder of the NAACP, and an important writer and spokesperson for African American civil rights.

    Mumbet's tombstone still stands in the Massachusetts cemetery where she was buried. It reads, in part: “She was born a slave and remained a slave and remained a slave for nearly thirty years. She could neither read nor write, yet in her own sphere she had no superior or equal.”

    I want to tell you the story of one of my old friends called Bob，His teachers called him A Troublemaker，They also said that he had no future and no hope. But now he owns a small second -hand bookstore store which makes him enough money to live on and also to support his mother.

    He told me that after he finished grade nine, he went to study at a technical college. He was a pretty bad student so he became one of the gang (一帮) leaders there. Many of them got caught many times for fighting.

    It looked like nothing could change his life. That was until one sad day when his father died. That changed everything.

    After his father died, his mother had to work very hard to make enough money to support the family. He told me that he really pitied his mum after his dad died. He felt that he needed to earn some money rather than let his mum work alone. He loved reading cartoon(卡通)books and had been collecting them for years. As his family was short of money, he decided that he should sell them. He did this by the side of the road where his mother was selling food.

    Soon he realized that his books were very popular. So he decided to set up his own business. He started his business by going around buying cartoon books from other people. He bought them for 25% and then sold them for half price. He could make enough money to help support the family.

    He was a troublemaker to his teachers but he is a hero to me. If you are judged as a bad student or as someone being stupid, I suggest you pay no attention to what they say. Just do your best in everything. Don't give up so easily. Believe in yourself. If you think that you can do it, then you can. Believe me, one day you could be more successful than those persons who looked down upon you.

    It is quite natural for all of us to want to preserve and protect the foods we purchase. With that in mind, we always think that the best way to do that is by putting them in our refrigerators. However, the following foods should never be placed in the fridge.

    Bananas

    Bananas should never be placed inside the refrigerator because they keep nutrients better outside the fridge. Bananas are better kept on the counter until they ripen. The cold temperatures actually slow down the ripening process of the bananas, while the wetness and darkness of the fridge will only lead to rotting.

    Potatoes

    Potatoes should be placed in a cool, dry and dark space. The cold temperature of the fridge can turn starch (淀粉) into sugar more rapidly. It is also recommended that potatoes be removed from plastic or paper bags they may have been placed in. Also, keep them unwashed, as well in an uncovered cardboard box.

    Garlic(大蒜)

    Placing garlic in your refrigerator will actually cause it to shoot. The garlic will also rotten and even rubbery. Moreover, inside your fridge, the look of the garlic will rarely change. This means you won't be able to tell if it's any good until you finally slice it open.

    Onions(洋葱)

    Placing your onions inside your refrigerator will eventually end up turning them rotten and soft. Unpeeled onions should be kept out of plastic bags and fridge. One of the reasons for this is because unpeeled onions require and need air exposure for maximum life. If you have peeled (剥皮) an onion though, then you should keep it in the fridge, in a covered container.

    I first began experiencing anxiety and depression at the age of 14, after being bullied (欺凌) at school for years. While at first anxiety and depression would come and go, it eventually became a constant part of my life.

    I was so eager to find the solution to overcoming my anxiety and depression that I tried everything from when I was in college to graduate school: mood-changing medication, special teas, yoga, anything I read about in books, and advice given by doctors. Despite this, I still felt I hadn't even come close to managing the problem.

    But one afternoon, my eyes fell upon an article in a magazine I was reading that talked about how dogs were able to help people with anxiety and depression. The very next day, I decided to get a dog—a corgi. When I brought my little corgi, Buddy, home. I didn't realize how much he would change my life. It didn't happen right away, however.

    Once the “puppy excitement” went away, my anxiety and depression came back as usual. One morning, I woke up with those familiar feeling again. I didn't want to get out of bed. I turned to pull the covers back over my head and give up. That's when I saw Buddy.

    Buddy started jumping all over me, licking my face, letting me know that it was time to go outside. It was as if he were saying, “There's no time to be sad; the world is amazing!” And for the first time in my life, my life was changing. I really was a new person. This was my new beginning.

    It's been more than a year since that day, and I've never spent another morning unable to get out of bed. I've not cried myself to sleep or spent my days stuck with fear and regret. Sure, I still have days when I feel sad or anxious. But with Buddy, my best friend, by my side, I've finally learned how to manage these feelings and emotions.

Brilliant Ways to Deliver Secret Messages

Many effective ways are used now to deliver secret messages. But in the past when the science and technology was not developing, especially during the war, how did people send secret and important messages?

Shoelaces

In the 1950s, the U.S. Central Intelligence Agency created a book of tips to teach spies ways to communicate in public. One tip: Lace up your shoes. Tied one way, the laces might mean "I have information": tied another, "Follow me". The spies could communicate while everyone else probably thought, "That guy can't tie his shoes correctly!"

Tattooed (刺文身) Head

Around 513 B.C., Histiaeus was forced out as the ruler of an ancient city. So he wanted to send a message to his supporters: Rebel against the king who took away his power.

Histiaeus called in a slave, shaved his head and tattooed the message onto the man's skin on the top of head. After the slave's hair grew back, he travelled to Greece with orders to shave his head again. Message received!

Orange Juice

In 1597, John Gerard was imprisoned in the Tower of London in England. He asked the prison guard to let him send letters written in charcoal (木炭). But then he wrote another message on top using the juice from an orange-which was only visible when the juice was dry and the page heated. With his invisible ink, he escaped successfully.

Songs

In the 1800s, African American slaves couldn't talk openly about their plans to escape to freedom—so they secretly sang about it.

Swing Low, Sweet Chariot might sound like a religious song. But for slaves, the "sweet chariot" was the code for the Underground Railroad, the network of people who helped slaves head to northern states and Canada. The song Wade in the Water warned escaped slaves to get in the water so dogs wouldn't smell them. With these songs, hundreds of people escaped slavery.