Before the law sits a gatekeeper. Tothis gatekeeper comes a man from the country who asks to gain entry into thelaw. But the gatekeeper says that he cannot grant him entry at the moment. Theman thinks about it and then asks if he will be allowed to come in sometimelater on. "It is possible," says the gatekeeper, "but notnow." The gate to the law stands open, as always, and the gatekeeper walksto the side, so the man bends over in order to see through the gate into theinside. When the gatekeeper notices that, he laughs and says: "If it tempts you so much, try going insidein spite of my prohibition. But take note. I am powerful. And I am only themost lowly gatekeeper. But from room to room stand gatekeepers, each morepowerful than the other. I cannot endure even one  glimpse of the third."

The man from the country has notexpected such difficulties: the law should always be accessible for everyone,he thinks, but as he now looks more closely at the gatekeeper in his fur coat,at his large pointed nose and his long, thin, black Tartar's beard, he decidesthat it would be better to wait until he gets permission to go inside. Thegatekeeper gives him a stool and allows him to sit down at the side in front ofthe gate. There he sits for days and years. He makes many attempts to be letin, and he wears the gatekeeper out with his requests. The gatekeeper ofteninterrogates him briefly, questioning him about his homeland and many otherthings, but they are indifferent questions, the kind great men put, and at theend he always tells him once more that he cannot let him inside yet. The man,who has equipped himself with many things for his journey, spends everything,no matter how valuable, to win over the gatekeeper. The latter takes it allbut, as he does so, says, "I am taking this only so that you do not thinkyou have failed to do anything." ②

During the many years the man observesthe gatekeeper almost continuously. He forgets the other gatekeepers, and thisfirst one seems to him the only barrier for entry into the law. He curses theunlucky circumstance, in the first years thoughtlessly and out loud; later, ashe grows old, he only mumbles to himself. He becomes childish and, since in thelong years studying the gatekeeper he has also come to know the fléas ( PZ) inhis fur collar, he even asks the fleas to help him persuade the gatekeeper.Finally his eyesight grows weak, and he does not know whether things are reallydarker around him or whether his eyes are merely deceiving him. But herecognizes now in the darkness a ray of light which breaks out of the gatewayto the law. Now he no longer has much time to live.

Before his death he gathers in his headall his experiences of the entire time up into one question which he has notyet put to the gatekeeper. He waves to him, since he can no longer lift up hisstiffening body. The gatekeeper has to bend way down to him, for the greatdifference has changed things considerably to the disadvantage of the man. ③ "You are insatiable (不知足的)."^t"Everyone strives after the law," says the man, "so how isit that in these many years no one except me has requested entry?" Thegatekeeper sees that the man is already dying and, in order to reach hisdiminishing sense of hearing, he shouts at him, "Here no one else can gainentry, since this entrance was assigned only to you. I'm going now to close it."④

    Killer whales in Alaska's Bering Sea have figured out an easy way to get fed. Instead of seeking out the fish them- selves, the clever whales chase down fishing boats and steal the entire catch of the day, as much as 20,000 to 30,000 pounds.

    Killer whale “thieves” are not a new phenomenon. Japanese fishermen have reported being followed by killer Whales since the 1950s. However, the increasing frequency of whale fish theft in the Bering Sea's continental shelf is now threatening the livelihood of fishermen.

    Paul Clampitt, a local fisherman, says his crew tried to keep the whales away with loud sounds. Though that worked for a short time, the whales now consider the noise “ a dinner bell”. Jay Herbert tried using sonar to keep the whales away. He also met with little success. According to the experienced fisherman, the smart whales deliberately seek out longliners (延绳钓渔船）, and, all the first opportunity presented to them, steal the fish, leaving behind just the lips of the fish caught!

    NOAA Fisheries biologist John Moran is not surprised at the whales' thieving skill. The expert says whales are skilled hunters who can distinguish the sounds of different boats and even recognize the sounds of the operating system that places the fishing equipment into the ocean. The expert jokes, “ Grabbing a fish off a line is nothing.” Since they are social animals, it is easy for whales to pass their skills on to others.

    Killer whales are not the only whale species that have learned to steal from humans. In the Gulf of Alaska, sperm whales also conduct similar thefts. Longline fishermen off Washington, Chile, Australia, Hawaii, and many other countries have reported similar incidents. There is, unfortunately, no easy fix to this problem. One of the possible solutions is using pot traps similar to the ones used to catch crabs. However, the cost of switching from longline to pot fishing is too high, especially for small-scale fisheries. There is also no guarantee that the catch will be safe from the intelligent whales which, many fear, will eventually figure out how to open the pots!

    Many leading AI researchers think that in a matter of decades, artificial intelligence will be able to do not merely some of our jobs, but all of our jobs, forever transforming life on Earth.

    The reason why many reject this as science fiction is that we've traditionally thought of intelligence as something mysterious that can only exist in biological organisms, especially humans. But such an idea is unscientific.

    From my point of view as a physicist and AI researcher, intelligence is simply a certain kind of information-processing performed by elementary particles(基本粒子) moving around, and there is no law of physics that says one can't build machines more intelligent than us in all ways. This suggests that we've only seen the tip of the intelligence iceberg and that there is an amazing potential to unlock the full intelligence that is potential in nature and use it to help humanity.

    If we get it right, the upside is huge. Since everything we love about civilization is the product of intelligence, amplifying (扩大) our own intelligence with AI has the potential to solve tomorrow's toughest problems. For example, why risk our loved ones dying in traffic accidents that self-driving cars could prevent or dying of cancers that AI might help us find cures for? Why not increase productivity through automation (自动化) and use AI to accelerate our research and development of affordable sustainable (可持续的) energy?

    I'm optimistic that we can develop rapidly with advanced AI as long as we win the race between the growing power of our technology and the knowledge with which we manage it. But this requires giving up our outdated concept of learning form mistakes. That helped us win the race with less powerful technology: We messed up with fire and then invented fire extinguishers (灭火器), and we messed up with cars and then invented seat belts. However, it's an awful idea for more powerful technologies, such as nuclear weapons or superintelligent AI— where even a single mistake is unacceptable and we need to get things right the first time.

    J.K. Rowling is the writer of Harry Potter, which is now one of the bestsellers in the world.

    J.K. Rowling was born in Bristol on July 31st, 1965. She has one sister who is two years younger than her. Both girls loved listening to their father reading bedtime stories to them. They especially loved stories about magical worlds. Rowling wrote her first story, called Rabbit, at the age of six.

    After she graduated from the university, Rowling worked as a translator in London. During this time, on a long train trip in the summer of 1990, the idea came to her of a boy who has magic but doesn't know it. In 1992 Rowling began to teach English. She lived with her baby daughter, Jessica, and spent much time finishing the first Harry Potter book for young readers. It appeared in June 1997. To her surprise, the book was greatly successful. The film came out in November 2001. Now Harry Potter series(系列) is popular with people of all ages and about 60 million books were sold in 200 countries.

    Why has the series been so successful? There are a few things. Many other magical stories take place in faraway lands or in past or future times. But Harry lives in modern England. He's also a very normal boy: polite, friendly, brave and clever. So when other children read about Harry, they can imagine being like him.

    J.K. Rowling is very happy with the success, and she is now busy finishing the whole series of seven books. She's writing full time and she's really enjoying life. She says she will go on living a normal life with her daughter and writing children's books.

    Imagine being given the opportunity to wake up to lions, eat your meals with monkeys, and even share your bath with bears, all from the comfort of a unique new lodging experience. The Jamala Wildlife Lodge opened its doors in January 2015, which was set up in an effort to educate visitors about aiding the survival of many of the world's endangered species. "It's great for the animals; they're going to get more space. It's great for the viewing public; they're going to get more things to see. It will be great for tourism and just for the local community," said Richard Tindale, the owner and operator. Spreading across three locations in the National Zoo, the 18 rooms, which range from giraffe tree houses to jungle bungalows, offer a fantastic experience with wildlife.

    The Giraffe Treehouse

    The Giraffe Treehouse is set among the giraffe enclosures (围场), and the Jungle Bungalows are luxurious individual suites which are next to either lion, cheetah (猎豹), brown bear, or Malaysian sun bear enclosures.

    The Ushaka House

    Housing up to 26 people, the Ushaka House is built around the monkey enclosure and has a builtin aquarium which offers private views of some of the zoo's sharks.

    The Burley Griffin House

    Only meters from the edge of Lake Burley Griffin, the indoor and outdoor entertaining areas have splendid views across the lake to Black Mountain.

    The Shark House

    The Shark House has its own little jetty (码头) and it comes out over the shark tank here and so the people who stay in the room will be able to go to their bedroom and pat the shark.

    Location

    Located in the heart of Australia's political capital, the Jamala Wildlife Lodge at the National Zoo and Aquarium is just ten minutes from Canberra's central Business District.

When we are kids, we are constantly being compared to others. Our parents may compare us to our siblings (兄弟姐妹). Our teachers probably compared us to other students. Kids compared us to other kids.

Those comparisons created either a sense of humiliation or a sense of pride. Either way, it has become second-nature. Everything we'd done has been followed by looking around and seeking validation (确认感).

Midway through my psychology PhD program at Cornell University in Ithaca, New York, I felt that I lacked whatever magical ability is required to finish and publish a project. It seemed as though other graduate students were authoring several papers in the time it took me to complete a single experiment. I worked as hard as I could, but my progress seemed to be incremental (渐进式增加的) compared with theirs. When I shared these concerns with my adviser, she had a different take on the situation. "You're not doing anything wrong," she assured me, "you're just pursuing a different kind of research."

Comparing yourself to others is not necessarily a bad thing.

When you catch yourself comparing yourself to others, get curious about the feeling that is being triggered (引起). Is it jealousy? Is it obsession? Is it admiration? Is it love? Is it inspiration? Your triggered feelings will give you a clue as to what is going on within you.

Most likely, you are jealous because you wish you had what it takes to achieve what the other has achieved or to have what they have. Get curious and figure out why you still don't have it and what would it take to get there. It is never a good idea to make yourself wrong for comparing yourself to others or to make yourself wrong for not getting where you wish to be.

But if all this comparison mounts to is bitter jealousy, then your problem is bigger than a simple comparison. Always bear in mind that your only competition is the one in the mirror and—believe me—it is the toughest competition of all.