Many people go to school for an education. They learn languages, history, geography, physics, chemistry and mathematics. Others go to school to learn a skill so that they can make a living. School education is very important and useful. Yet no one can learn everything from school. A teacher，no matter how much he knows, cannot teach his students everything they want to know. The teacher's job is to show his students how to learn. He teaches them how to read and how to think. So much more is to be learned outside school by the students themselves.

    It is always more important to study by oneself than to memorize some facts or a formula(公式). It is actually quite easy to learn a certain fact in history or a formula in maths. But it is very difficult to use a formula in working out a maths problem. Great scientists, such as Einstein, Newton and Galileo didn't get everything from school. But they were all so successful. They invented so many things for mankind. The reason for their success is that they worked hard all their lives, wasting not a single moment. They would ask many questions as they read and they did thousands of experiments.

    Above all, they knew how to use their brains.

    One of the most important aspects of an image is color. People are very sensitive to color, and different colors have different on people.

    In general, red is an exciting color, which creates an image of action, energy danger. Red is also the most frequently used color in flags. Eighty percent of the world's flags contain red. A study in Germany showed that football teams wearing red are more successful. Blue is a very calm color. Business executives usually wear dark blue suits. Blue is also a peaceful color. The flag of the United Nations is light blue. Yellow is associated with openness and freedom. Green is a very relaxing color. Surgeons nowadays wear green, because it's less tiring than white. Black creates an image of power and authority. It can also be a very threatening color. Gangsters and vampires often wear black, white is a pure and strong color. This is one reason why doctors wear white coats. We trust them more. Grey is a very anonymouscolor. People wearing grey don't want other people to notice them. Brown is the opposite of black. It's warm and friendly, while black is threatening

    The dream to travel the world has always been in the mind of many. The national geographic and Discovery Channel videos are just not enough. You can only feel the excitement of experiencing all those fascinating wildlife, countryside or adventure tourism documentaries by traveling the world. Here are the best destination countries based on safety, culture, ease of transportation, and accommodation for single travelers in 2018.

    Bali Island, Indonesia

    The cheapest of all countries to visit. Living in a comfortable room, having three meals a day and a few beers for only 25 dollars per day! Accommodation and goods are cheap everywhere, especially when you move further to the north.

    Italy

    Lined with olive trees, hilltop towns, and wonderful beaches, Italy is one of the most sought-after destinations; Not forgetting the wine and wine-cooked barbecues. All the cities of Italy are always full of tourists all year around.

    Vietnam

    Vietnam suburbs or the city of Hanoi is just where you need to be. Amazing landscapes, friendly locals, cheap food and affordable services, Cab services are a mere 10 dollars or less compared to cab services in the States which can get as high as 30 dollars for a couple of blocks away.

    France

    You don't talk of France without mentioning Eiffel tower. At night, it gives the most incredible view of France. Avoid the long lines to the tower and book your trip earlier For Catholics or historians, the Notre Dame and its surroundings will attract you with its ancient mummified (制成木乃伊的) cats, while Les Invalids military museum has all types of the world war weapons.

    Like a lot of health-care professionals, Dr. Brian Goldman finds it extremely difficult to draw boundaries between his work and personal lives. "There's this view that you should suck it up and do one more thing," says the ER physician and host of CBC's White Coat, Black Art. But that "one more thing" often comes at Goldman's expense.

    "You're exhausted and a patient or their family look at you with begging eyes," he says. "So you have this dilemma: say that your shift is over or give until you're totally spent?" Goldman's work stress combined with family tension after his mother was diagnosed with dementia 20 years ago. Caring for her over a decade was difficult, as was dealing with his father's grief. "When someone else is drowning you, you have to grab a life preserver and save yourself," says Goldman.

    Setting boundaries isn't just important for busy professionals; everyone can benefit from managing situations that cause undue stress or pain. Here are some tips.

First, "If someone's behavior makes you unhappy — and it could be anything from the way they speak to you to repeatedly failing to stick to their promise — then there's room to set limits," says Patrick Keelan, a Calgary psychologist. We often avoid setting limits because we prioritize the happiness and comfort of others over ours. In order to control this impulse, Goldman suggests framing the development of boundaries as a form of self-kindness. When facing an overwhelming situation like the one he was in with his father, Goldman suggests reflecting on what is making you feel uncomfortable, unhappy or unappreciated. "You can't relate to others or be kind to others if you aren't kind to yourself," he says.

Second, once you've become aware of your needs, setting and maintaining boundaries requires clear verbal communication. There are three obstacles to enforcing boundaries in a relationship: fear, guilt and self-doubt, says psychologist Nicole MaCance. We often fear that if we set limits, the other person will reject us, or we feel bad claiming our needs. Keelan proposes setting ground rules before relationships become tense. Start by cooperatively listing values — like mutual respect, support, and loyalty — and then building the guidelines from these values. If you're struggling to reach a consensus, Keelan recommends engaging a third party, such as a therapist, to help.

    Now, if you want a boundary to stick to, you can't enable someone in breaking it. As such, it's crucial to establish consequences for  transgressions (越轨). Otherwise, McMance says," you're giving them permission to violate that boundary." If they won't respect your boundaries, you have to do some soul- searching about the value of the relationship. "When you feel bad more than you feel good in this person's presence, and when the relationship is impacting your self-worth and happiness, it's time to reassess," says McCance. Saying no is hard, but she suggests framing it as saying yes to healthier relationships. "We're all better mothers and partners and brothers when we have boundaries."

    Imagine a small group of people with a shared passion for the same craft. They all have different skills and approaches, but they come together to share skills, share stories, and share in the joy of making something.

    Modern maker culture is filling headlines and lab spaces all over the world. The way makers communicate with each other has changed over time. In the past, skills mainly came from personal sit-downs with members of the group. But sometimes a teacher wasn't available, or the one available didn't know how to do the skill others wanted to learn.

    Today a teacher doesn't even have to be in the same country or occupy the same decade as the students. Thanks to the work of people who take the time to break down and share the details of their craft, an interested individual can learn anything. Guides may range from videos to diagrams and text. Regardless of the media, maker resources are meant to be shared.

    One of the features of the maker movement is the crossover between different interests. Perhaps a passion for cars and for leather craft can result in a truly custom interior (定制的内饰). Perhaps a love of knitting (编织)and robotics will result in a tiny ——but very mobile ——robotic furry cat.

    And once you have started your creation, finding a community to share with is no longer limited to the people nearby. Modern makers have been sharing videos of their progress online for years, contributing greatly to the rapid spread of the maker movement. As different as the participants might be, they share enthusiasm, support, and a willingness to try.

    Imagine making a ping-pong table together with your makers' team. One group builds the basic frame. Another group takes on the responsibility of painting. You knit the net. There is joy in just giving it a try. It will remind you of childhood creations. Whether you are an experienced programmer or just picking up a hammer for the first time, it is never a bad time to come up with an idea, try something, and share the results.

Gottfried Wilhelm von Liebniz was a philosopher and mathematician in search of a model. In the late 1600s Leibniz decided there was a need for a new, purer arithmetic than our common decimal (十进制) system. He got his inspiration from the 5000-year-old book that is at the heart of Chinese philosophy: the I-Ching, or Book of Changes.

This ancient text was such an influence on Liebniz that he titled his article on the new arithmetic "Explanation of a new arithmetic and the ancient Chinese figure of Fu X". Fu Xi was the legendary first author of the I-Ching. The arithmetic that Liebniz described was binary (二进制) code, which is used in almost every modern computer, from iPhones to China's own Tihane-2 supercomputer.

To figure out what Liebniz learned in the I-Ching, we need to understand something that most of us have taken for granted. When we listen to an MP3, look at a digital photo or watch the latest TV drama, we are experiencing a digital representation of reality. That representation is basically just a string of binary signals that are commonly known as 1s and 0s. What Liebniz's gained from the book was that even the most complex reality could be represented in the binary form as 1s and 0s.

In the philosophy of the I-Ching, reality is not entirely real. It is something more like a dream. This dream of reality arises from the binaries of Yin and Yang, as they play out countless combinations, practically everything in the universe. It's not surprising then, from the l-Ching's perspective, that anything in the dream of reality can be represented in a string of 1s and 0s, processed by a computer.

The I-Ching was far more ambitious than the current practical applications of binary code. It is claimed that the I-Ching represents nothing less than the basic situation of human life itself. As a system for predicting the future, the I-Ching might disappoint, but as a way of questioning your own unconscious mind, it can be remarkably useful.

The I-Ching's teachings also contain warnings about our digital revolution. Binary code, powered by modern computers, has an amazing capacity to represent reality. However, the ancient authors of the I-Ching might have understood its potential-and its dangers-even better than we now do.

So when scientific thinkers ask whether computers can create "virtual realities" or "artificial intelligence", they are missing the point. Of course, we can create ever deeper and more complex layers of the dream of reality. The real question is, can we wake up from the dream we're in already?