Stop wasting your time thinking of reasons for your failures and shortcomings.  Instead, realize that the seeds of success were planted within you when you were born. Only you have the power to make those seeds grow.

    The seeds, and the power to grow them, are contained in the most awesome machine ever created: the human mind. Success is a choice and not a chance. You were born a winner. You were born rich. You can be a success if only you make the right choice.

    You cannot be successful without first developing your self-esteem (自信心). Your level of self-esteem is always based on the degree of control that you are able to exercise over yourself, and thus over your life. People with low self-esteem are people who do not believe that they have any power，or responsibility for their lives. They are always victims. They are leaves tossed (摇摆) by the winds of chance blown about with any sudden change in the weather.

    You can exercise control over your life only to the degree that you believe you are responsible for everything that happens in your life.  Failures think that everything happens by accident and chance. Successful people realize that they are responsible.

    Everything happens as a result of something.  If we can identify the cause，we can control the effect. We are responsible for what we choose to think and believe. One generally rises to the level that one expects. We are responsible for setting our expectations. Our success is dependent upon our level of confidence.

    If you associate with positive-thinking people，you are definitely going to achieve success. On the contrary，the opposite happens. We are responsible for finding，planting，and nurturing (培育) the seeds that contain future victory, born from setbacks (挫折).

    In short, in all areas of your life，whether they are financial, physical, emotional, or spiritual, you are responsible. Once you recognize this, accept it, and firmly believe it. You are on the road to success.

    Since 1984,Philadelphia has been cleaning up its act.One by one,graffiti（涂鸦）covered walls are being changed into outdoor art.So far,more than 1,800 murals（壁画）have been painted.Philadelphia now has more murals than any other American city.

    The walls that were once ugly with graffiti are now covered with beautiful pictures of historical heroes and modern art, thanks to the Mural Arts Program(MAP).Its work makes schools and public places attractive,and its citizens very proud.The program began as part of Philadelphia's Anti-Graffiti Network.Jane Golden is the MAP's artistic director."When people ask me what our program is about,"she says,"I answer them with one word: hope." Each year, the MAP offers youth art programs and workshops.Some onetime graffiti writers even help paint MAP murals.

    The MAP's work,says Golden,is all about developing a sense of community（社区）.When a neighborhood requests a mural,the MAP works with the people there to develop a message.Some messages have been "Safe Streets,"Love and Care," and "Peace Walk".

    The MAP receives up to 50 requests for murals each week. Last year, the workers painted 140 murals."The making of a mural enters people's collective memory as an extraordinary, pleasant moment in neighborhood history," says Golden, who began as a muralist in Los Angeles.

    You can start horse-riding at any age. Choose private or group lessons any weekday between 9 am and 8:30 pm (3:30 pm on Saturdays). There are 10 kilometres of tracks and paths for leisurely rides across farmland and open country. You will need a riding hat.

    Opening Hours: Monday through Friday: 9:00 am一8:30 pm

    Phone: (412)396--6754 Fax: (412)396—6752

    Sailing Club:

    Our Young Sailor's Course leads to the Stage 1 Sailing qualification. You'11 learn how to sail safely and the course also covers sailing theory and first aid. Have fun with other course members afterwards in the clubroom. There are 10 weekly two—hour lessons (Tuesdays 6 pm～8 pm).

    Opening Hours: Tuesdays: 6:00 pm一8:00 pm

    Phone: (412)396—6644 Fax: (412)396—6644

    Diving Centre:

    Our experienced instructors offer one-month courses in deep-sea diving for beginners. There are two evening lessons a week, in which you learn to breathe underwater and use the equipment safely. You only need a swimming costume and towel. Reduced rates for couples.

    Opening Hours: Monday and Friday: 6:30pm—8:30pm

    Phone: (412)396—6312 Fax: (412)396—6706

    Medical Center:

    The staff of the Medical Center aim to provide convenient and comprehensive medical care to students and staff of the university. The center is well equipped and the staff here are trained to deal with a broad range of medical problems. Both female and male doctors as well as nursing staff are available for consultation. Also, all kinds of medicines are sold here and are cheaper for students than other drugstores.

    Opening Hours: 24 hour from Monday to Sunday

    Phone: (412)396—6649 Fax: (412)396—6648

    Watersports Club:

    We use a two-kilometre length of river for speedboat racing, and water-skiing. A beginners' course consists of ten 20-minute lessons. You will learn to handle boats safely and confidently, but must be able to swim. The club is in a convenient central position and is open daily from 9 a.m. to 4 p.m., with lessons all through the day.

Opening Hours: Monday through Friday: 9 am—4pm

Phone: (412)396--6899 Fax: (412)396—6890

    Life is a process. It is said that it doesn't come the same again; it is glad that the same doesn't have to come back again.

    In this life, what did you miss?

    The wife asked the husband when she was 25. Worried, the husband replied, "I missed a new job opportunity."

    When she was 35, the husband angrily told her that he had just missed the bus.

    At 45, the husband sadly said, "I missed the opportunity seeing my close relative before his last breath."

    At 55, the husband said disappointedly, "I missed a good chance to retire."

    At 65, the husband hurriedly replied, "I missed an appointment with the dentist."

    At 75, the wife did not ask the husband anymore, the husband was kneeling in front of the very sick wife. Remembering the question the wife used to ask him, this time he asked the wife the same question. The wife, with a smile and peaceful look, replied, "In this life, I did not miss having you!"

    The husband was full of tears. He always thought that they could be together forever. He was always busy with work and something unimportant. So much had he never been thoughtful to his wife. The husband hugged the wife tightly and said, "Over 50 years, how I had allowed myself to miss your deep love for me."

    In the busy city life, there are many people who are always busy with work. These people are busy with their jobs, and sacrifice all their time and health to meet the social expectations. They are unwilling to spend time on health care. They miss the opportunity to be with their children in their growing up. They neglect the loved ones who care for them, and also their health.

    Nobody knows what is going to happen one year from now. Life is not permanent, so always live in the now.

    Virginia Wildlife is your ticket to learning more about Virginia's spectacular(壮观的）wildlife, fisheries , and breathtaking habitats. Whether you hunt, fish, boat, or take in the wildlife from your easy chair, Virginia Wildlife offers you stories and insight on the natural world, supplied by the state's leading wildlife and outdoor experts.

    Virginia Wildlife magazine has been dedicated to bringing its readers the best in hunting, fishing, boating, and wildlife resource information from around the state. Its award winning design, feature articles, spectacular color photography, and original artwork is an excellent way to explore Virginia's great outdoors.

    Published for nearly seven decades by the Department of Game and Inland Fisheries, Virginia Wildlife offers its subscribers twelve months of information-packed articles and award-winning images captured by nationally recognized photographers. Each month you will be treated to a magazine that includes something for the entire family: for example ,instruction on becoming a better bow-hunter, tips on tacking(对付） that monster catfish (鲇鱼),unique game and fish recipes, stunning(绝妙的）photographs, and much, much more.

    Let this 36-page, full-colour magazine be your guide to Virginia's great outdoors! Subscribe for one year only for $12.95.Receive a two-year subscription for only$23.95.

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 Imagine this. You need an image of a balloon for a work presentation and turn to an AI text- to- image generator, like Midjourney or DALL-E, to create a suitable image. You enter the prompt(提示词)" red balloon against a blue sky" but the generator returns an image of an egg instead.

What's going on? The generator you' re using may have been" poisoned". What does this mean?

Text- to- image generators work by being trained on large databasets that include millions or billions of images. Some of the generators have been trained by indiscriminately (任意地) scraping online images, many of which may be under copyright. This has led to many copyright infringement(侵害) cases where artists have accused big tech companies of stealing and profiting from their work.

 This is also where the idea of" poison" comes in. Researchers who want to empower individual artists have recently created a tool named" Nightshade" to fight back against unauthorised image scraping. The tool works by slightly changing an image's pixels(像素) in a way that confuses the computer vision system but leaves the image unchanged to a human's eyes. If an organization then scrapes one of these images to train a future AI model, its data pool becomes" poisoned". This can result in mistaken learning, which makes the generator return unintended results. As in our earlier example, a balloon might become an egg.

 The higher the number of" poisoned" images in the training data, the greater the impact. Because of how generative AI works, the damage from" poisoned" images also affects related prompt keywords. For example, if a" poisoned" image of a Picasso work is used in training data, prompt results for masterpieces from other artists can also be affected.

 Possibly, tools like Nightshade can be abused by some users to intentionally upload" poisoned" images in order to confuse AI generators. But the Nightshade's developer hopes the tool will make big tech companies more respectful of copyright. It does challenge a common belief among computer scientists that data found online can be used for any purpose they see fit.

 Human rights activists, for example, have been concerned for some time about the indiscriminate use of machine vision in wider society. This concern is particularly serious concerning facial recognition. There is a clear connect ion between facial recognition cases and data poisoning, as both relate to larger questions around technological governance. It may be better to see data poisoning as an innovative(创新的) solution to the denial of some fundamental human rights.