There are two types of people in the world. Although they have equal degree of health and wealth and other comforts of life, one becomes happy, the other becomes unhappy. This arises from the different ways in which they consider things, persons, events and the resulting effects upon their minds.

    People who are to be happy fix their attention on the convenience of things. The pleasant parts of conversation, the well prepared dishes, the goodness of the wine, the fine weather. They enjoy all the cheerful things. Those who are to be unhappy think and speak only of the opposite things. Therefore, they are continually dissatisfied. By their remarks, they sour the pleasure of society, offend （hurt）many people, and make themselves disagreeable everywhere. If this turn of mind was founded in nature, such unhappy persons would be the more to be pitied. The intention of criticizing and being disliked is perhaps taken up by imitation. It grows into a habit, unknown to its possessors. The habit may be strong , but it may be cured when those who have it realize its bad effects on their interests and tastes. I hope this little warning may be of service to them, and help them change this habit.

    Although in fact it is chiefly an act of the imagination, it has serious results in life since it brings on deep sorrow and bad luck. Those people offend many others; nobody loves them, and no one treats them with more than the most common politeness and respect. This frequently puts them in bad temper and draws them into arguments. If they aim at getting some advantages in social position or fortune, nobody wishes them success. Nor will anyone start a step or speak a word to favor their hopes. If they bring on themselves public objections, no one will defend or excuse them, and many will join to criticize their wrongdoings. These should change this bad habit and be pleased with what is pleasing, without worrying needlessly about themselves and others. If they do not, it will be good for others to avoid any contact （接触）with them. Otherwise, it can be disagreeable and sometimes very inconvenient, especially when one becomes mixed up in their quarrels.

    If you're showering every day, you're probably over doing it. In fact, showering too often can actually hurt your body in the long run.

    As Time's public health column explains, daily showers are common due to social norms more than any proper health need. We connect being freshly showered with being attractive and pleasing, so we tend to showering often to feel better.

    But what's the ideal shower frequency? In terms of your health — not how you look or smell — probably once or twice a week, assistant professor of dermatology at George Washington University, Dr. C. Brandon Mitchell says. “Your body is naturally a well-oiled machine,” he says. “A daily shower isn't necessary.”

    Of course, your situation may vary. If you have a job like car maintenance or construction, you'll obviously have a visible layer of dirt you'll need to wash off every single day. Similarly, if you work out every day, you may not have any health risks by washing every day, but you'll still be smelly. If you feel like you need to take daily showers for aesthetic（审美的）reasons, at least make most of them light showers. “I tell patients who shower daily not to soap their whole bodies,” Mitchell says. Hit your pits, butt and groin, which are the areas that produce strong smells. The rest of your body doesn't need much soaping, he says.

    Too much time spent under the hot water can dry out your skin, cause cracks（裂纹）that can lead to infections or germs getting into your skin, and take away the natural oils on your skin that help keep it healthy. So, even if you're aiming to be your most presentable, be sure to keep it moderate to avoid hurting your skin in the long run.

    China will build a comprehensive (综合性的) network to detect (检测) pollution of the land, sea and air by 2020, employing satellites, drones(无人机)and remote sensors to monitor the environment.

    The national leadership agreed to the network plan in July, saying the government will lead the monitoring, share information among departments and regions, and be held accountable (追究责任) if violations (违规行为) are found, the Ministry of Environmental Protection said on Tuesday.

    Satellites, a major tool for monitoring air pollution, will receive a boost (大力发展)  this year. The ministry said it will accelerate research on two atmospheric environmental monitoring satellites.

    The ministry will improve a remote sensor network, guided by the goals of the 13th Five-Year Plan (2016-2020), which is scheduled to be released at the end of this year, according to the ministry's Environmental Supervision Department.

    Remote monitoring has played a bigger role in locating pollution sources. Drones helped authorities locate polluted areas in the Tengger Desert in northern China and identify scattered summer straw burnings.

    Hebei province, which has a serious air pollution problem, has cooperated with the ministry's Satellite Environment Center to conduct monitoring from satellites and monitoring stations since January last year.

    "We used the data from the center's satellites to forecast the movement of smog during the Asia-Pacific Economic Cooperation meetings in November, "Zhang Feng, an engineer in the Environmental Supervision Department of the provincial environmental watchdog, said on Tuesday.

    Data collected from monitoring stations helped authorities provide accurate forecasts on hazy days during that period, he said.

    I was very excited on the first day of high school! I had P.E for the first period. We hurriedly gathered in the locker room (衣帽间) when the headmaster began to speak, “Good morning, boys and girls! Welcome to the first day of the great new school year. We will begin with the pledge (誓言) of loyalty.”

    I pulled my shirt over my head and my right hand immediately rested over my heart. A few tears came to my eyes as every time I pledged. I thought of my grandpa. He had died almost a year before, but I still missed him every day. Grandpa served in World War II and the flag had a very special meaning for him.

    The next morning in the locker room, I noticed something strange. Some girls talked through the pledge. After that, even fewer did the pledge, including the teachers. By the second week of school, I was the only girl in the whole locker room that did the pledge.

    The next morning, I hid in the bathroom to change clothes and pledge. There I couldn't see the flag and I had a sense of sorrow to be hiding like that. I kept hiding for the next week and felt worse.

    I spent a weekend gathering up my nerve. On Monday, I changed into my gym clothes right away and was standing by my locker when the headmaster began morning announcements. The pledge started and I put my hand over my heart. A girl nearby locked her locker and asked, “Why are you doing that? ” She looked confused.

    “My grandpa fought in World War II and he died last year,” I said. “I'm doing it for him.”

    She felt embarrassed and looked away. “Oh.” She said.

    Over the next few weeks, more girls questioned me about the pledge. I gave them all that same answer. I never inspired other girls to do the pledge along with me. They made their choice; I made mine. I was doing it for my Grandpa, but more than that, I was doing it for myself. Grandpa raised me to be proud of my country and that pride didn't stop.

    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

    Getting around in Canada is fairly easy. Most cities have urban transportation systems, including buses, streetcars, and trains, and some of the larger cities also have subways.

    You can board the transportation at regular stops along the routes. Some let you pay in cash, others require tickets. If you don't have a ticket for the bus, you must pay the right amount of money. This is because the driver does not carry any change. Once you get settled, you may want to buy a monthly pass or a package of tickets to save money. You can buy subway tickets at the subway station.

    If you have to take several buses or change subways on a single trip, you do not need to pay money each time. Simply ask the driver for a transfer, or pick one up from the machine on the subway platform.

    If you are not sure where to board the bus or the streetcar, just ask someone, or follow the crowd. It's usually at the front of the bus, where you show your pass to the driver. When using public transportation, Canadians line up. First come, first served, is a common approach to many activities in Canada.

    Maps of routes and schedules are usually available from the public transit company in your area, and there may also be a telephone information line. You may want to ask someone for the name of the transit company in the area where you live, and then look it up in your telephone book.