When my students ask me why I live in a tiny house, they ask it in light of all the “sacrifices(牺牲)”I an making. They know that I have moved from a large apartment in the city to a small custom-built home on wheels in the backyard woods. They know I forego running water, Internet connection, sewage(下水道), and reliable phone reception.

    However, it was possible for me to be truly happy while living with very few material things. My body responded well, in health, fitness and mood, to a schedule more consistent(一致的)with the natural day and night cycle. Observing the daily sunset, hosting friends for days at a time, reading, writing letters to my families and friends and exploring natural wonders in my spare time all were free and invaluable experiences.

    What was necessary to my survival proved to be a rather short list-healthy food, clean and drinkable water, heat source, weather-protecting shelter, weather-suitable clothing, equally important friends and mental and physical stimulations(刺激).

    When I returned to life in the US, I couldn't help but sense a deep and uneasy belief that life suddenly changed. I felt disconnected with many things- the earth, others, my food source, my waste disposal, the natural cycle of my body and the productive interests. These are the things I once cared for but now find myself too busy to enjoy. How was it that I was earning literally 40 times my Peace Corps salary and was less healthy, satisfied and intentional in my daily schedule? I found myself asking-what is it to be rich anyway? Therefore, last August I let go of most of my possessions and moved into a tiny house on wheels because I wanted to see if I could live a more enjoyable lifestyle. So far so good. No inconvenience has made up for the many positive benefits that continue to come from this change in lifestyle. I believe that I have made the right decision.

    Cold weather has a great effect on how our minds and our bodies work. Maybe that is why there are so many expressions that use the word cold. For centuries, the body's blood has been linked closely with the emotions. People who show no human emotions or feelings, for example, are said to be cold –blooded. Cold –blooded people act in merciless ways. They may do cruel things to others, and not by accident. For example, a newspaper says the police are searching for a cold-blooded killer. The killer murdered someone, not in self-defense. He seemed to kill with no emotion.

    Cold can affect other parts of the body, the feet, for example. Heavy socks can warm your feet, if your feet are really cold. But there is an expression—to get cold feet –that has nothing to do with cold or your feet. The expression means being afraid to do something you had decided to do. For example, you agree to be president of an organization. But then you learn that all the other officers have given up the position. All the work of the organization will be your responsibility. You are likely to get cold feet about being president when you understand the situation.

    Cold can also affect your shoulder. You give someone the cold shoulder when you refuse to speak to them. You treat them in a distant, cold way. The expression probably comes from the physical act of turning your back toward someone, instead of speaking to him face-to-face. You may give a cold shoulder to a friend who has not kept a promise he made to you. Or, to someone who has lied about you to others.

    A cold fish is not a fish. It is a person. But it is a person who is unfriendly, unemotional and shows no love or warmth. A cold fish does not offer much of himself to anyone.

    Out in the cold is an expression often heard. It means not getting something that everybody else got. A person might say that everybody but him got a pay raise. He was left out in the cold. And it is not a pleasant place to be.

    For many reasons, I didn't choose to go to university like most of my family members, schoolmates and even best friends. I can't say that I didn't have moments of doubt about my decision. As the last term of school was coming to a close, I began to feel very anxious about the choice I made to be different and start an apprenticeship(学徒).

    Although my A-level results day was the one that I felt extremely proud of, I knew that the general feeling from most of my teachers was disappointment. I completed my application, did a series of ability tests and interviews, and at last nine months later—I began an apprenticeship with Sellafield Ltd.

    As soon as I started, I knew straight away that I made the right decision. From the people I met, to the on-the-job training that I was experiencing, I began to feel a real sense of purpose and could see a successful career in an industry that I found so interesting and challenging, paving the way in front of me. I never thought when I was in sixth grade that I would be working in the nuclear industry, but now I can't imagine working anywhere else.

    Since finishing my apprenticeship over two years ago, I've had countless opportunities to develop myself both academically and personally. I've bought my first home; I was chosen to be a part of the Government's Get In Go Far apprenticeship campaign, and offered an amazing and unique secondment(人员借调) with the Environment, Health, Safety and Quality department at Sellafield.

    I have no doubt that without my apprenticeship I wouldn't be in the position I am today, but equally I know that it was only the beginning for me.

    My apprenticeship inspired me to explore different career paths in the nuclear industry, and it gave me the confidence to know that I can succeed in shifting from one position to another.

    An old man went to live with his son, his daughter-in-law, and a four-year-old grandson. The old man's hands trembled, his eyesight was very poor, and he couldn't walk steadily(平稳地). The family ate together nightly at the dinner table. But the elderly grandfather's shaky hands and failing sight made eating rather difficult. Rice often dropped on the floor.

    The son and the daughter-in-law became angry with the old man, so they put a small table in the corner. There, the grandfather ate alone, while the rest of the family enjoyed dinner at the table. Since the grandfather had broken a dish or two, his food was served in a wooden bowl.

    The four-year-old son watched it all in silence. One evening before supper, the father noticed his son playing with a piece of wood on the floor. He asked the child sweetly, "What are you making?" The boy answered, "Oh, I am making a little bowl for you and mama to eat your food from when I grow up." The four-year-old son smiled and went back to work. The words struck the parents so that they were in silence. Then tears started to stream down their cheeks(脸颊). Though no word was spoken, both knew what must be done. That evening the husband took grandfather's hand and gently led him back to the family table.

    When I was three years old, I couldn't speak. It was a strange reality that none of the doctors I visited could understand.

    One day, I was shadowing my mother. She found herself looking in a mirror, and through it our eyes met. She began to speak to me through the reflection, and I slowly began to mimic(模仿)her mouth's movements until I formed a word.

    It turned out I'm deaf in my left ear, and have a slight problem in my right. Being hard of hearing has been difficult, but I've never lived in a state of self-hating sorrow. Imagine being able to shut out all sound as you lay your head down to sleep by simply rolling over onto one side. That's my reality when I sleep on my "good ear", and it makes me feel like a superhero sometimes.

    People call my deaf side my "bad ear", but when I wear my hearing aid, I have access to a range of features that some other deaf people don't. In cinemas, for example, with one click of a button I can enjoy a whole film as though it were whispered to me from the mouths of the actors.

    Owning a hearing aid hasn't always felt good, however. On the first day I got my aid, when I was eight, I took it to school for show-and-tell. As I explained how it worked to my classmates, a boy yelled out, "Aren't those for old men?" At that moment, I felt different. It took a long time for me to get over that sense of being so unlike my peers.

    But it's not just school kids who can make us deaf and hard-of-hearing people feel like burdens. Every video on social media that lacks subtitles(字幕), for example, means an entire community of deaf people is unable to enjoy it. Completely deaf people are excluded from enjoying many movies too, as subtitles in cinemas are almost impossible to find.

    And with hearing aids costing around $2,500 each, it can be hard for many people to afford to be able to listen to the things that others take for granted. As for me, I can listen to music, enjoy films, and catch conversations - I'm lucky. I'm deaf, but I can still hear everything. I've been blessed with wonderful life experiences, and I am human. And when it comes to sleeping, I'm even superhuman.

    Huawei Technologies Co. displayed its much-anticipated in-house operating system Harmony OS on Friday, marking what some call the Chinese tech giant's biggest push yet to build its own software ecosystem for the era of the internet of things.

    The move is also expected to weaken the influence of the United States government's restrictions on Huawei using Google's Android operating system in smartphones, analysts said.

    Yu Chengdong, CEO of Huawei's consumer business group, speaking in Dongguan, Guangdong province, said it is difficult to deliver a smooth experience across different devices with the huge amount of codes involved in the Android and Linux operating systems. Linux is an open-source operating system widely used in personal computers and other hardware.

    "Harmony is a next-generation operating system designed to address the challenge," Yu said, adding that it will be able to support a wide range of application situations, including smart TVs, automobiles and wearables.

    The internet of things refers to a network of devices and other objects that can connect with each other and exchange data.

    Yu said the US government's restrictions have accelerated the company's marketing of the system, which now has about 4,000 employees working on it.

    The senior executive said Harmony can be used in its smartphones. But Android is still Huawei's preferred choice for handsets if the company is allowed to use it.

    "But when Android is not available, Harmony can be applied immediately to smartphones. Harmony is ready," Yu added.

    Jia Mo, an analyst at market research company Canalys, said even if Huawei does not use Harmony in its smartphones in the short term, its smartwatches and smart TVs can be equipped with Harmony to widen its use and accumulate more experience in building an ecosystem.

    "Also, more importantly, Huawei chose to build Harmony into an open-source operating system and allow it to be compatible with Android. Thus Harmony will be more accepted by current Android users. This will prevent Huawei from repeating the fate of Microsoft in promoting smartphone systems," Jia said. Microsoft failed to popularize the use of its Windows system in smartphones years ago.