Whether you are young or young at heart, it is never too late to change, or take in some new and better practices into your daily life. Here are some wise lessons that I wish I knew when I was younger.

    I used to be worried about what others thought of me. Finally, I changed. Remember that if you're wasting too much time looking for respect(尊重) from others, then you will not have time to finish all you desire(期望).Everyone has an opinion, but in fact others' opinions about you are based more on their history and perceptions(观念) than anything you're actually doing. So depend on your own assessment(评估) of you rather than others'.

    Enjoy every moment of today. Don't wait to do or enjoy anything. Don't tell yourself you will do it tomorrow. If it is important to you, then do it today. Pay attention to what is happening now, the task at hand and all the choices you make today, big and small. Our future is set by what we decide and do today.

    What happened yesterday is over. You can not change it. So let it go. Don't waste your energy considering anger or unhappiness. It only stops you from moving forward in life.

    Look for the good in people. Celebrate the happy moments, big and small. Search for the chances for growth. Give helpful encouragement rather than unwanted criticism (批评). Be helpful whenever possible.

    In a word, life is serious but you can still be delighted and hopeful. Otherwise, what's the point?

    Farah was sitting in the kitchen going over the party list with her mother. The exams were over and Farah wanted to invite her friends for a party.

    "Farah, aren't you going to invite Hafsa?" her mother asked. Hafsa had been her best friend since childhood.

    "Mother, you know I am now a part of Purple Girls Club and we have some rules about people we can be friends with," Farah answered.

    "Really? And what are the rules?" her mother asked.

    "Well, only very pretty girls can be part of our group. And Hafsa is so...you know...dark."

    "I cannot believe it," her mother said angrily.

    As Farah left the kitchen, her father called her from the living room. Farah went to her father and paled when she saw the exam report in his hands. "Farah, what has happened to your grades? You have failed in Mathematics," her father said. Farah had no answer. The truth was that the activities of Purple Girls Club left her with very little time for studies. "Farah, it says that you can take part in supplementary exams(补考). If your grades don't improve then, I'll cancel(取消) your trip to Spain." Farah went to her room and called Gina, the leader of Purple Girls Club, "Gina, can you help me to complete my notes before the exams?" Gina laughed. "Exams? Who cares about exams?"

    One by one, she called her friends in the club but no one seemed to care or wanted to help. Farah knew Hafsa would help her. Farah also knew Hafsa had been hurt by her, but Hafsa said, "If you need any help, just let me know. We can study together till your exams." Next Monday, as two friends entered the school together, Gina called out. "Farah, you know our rules. You cannot be friends with those who do not belong to our club."

    "Gina, I have a new rule about friendship," Farah replied.

    One of the most famous buildings in the United States is Carnegie Hall, the home of classical and popular music concerts in New York. Carnegie Hall is known not just for its beauty and history, but also for its amazing sound. Carnegie Hall is named after Andrew Carnegie, who paid for its construction. Construction of Carnegie Hall began in 1890 and the official opening night was on May 5th, 1891.

    The hall was owned by the Carnegie family until 1924 when it was sold to Robert E Simon. The building became very old and in 1960, the new owner made plans to destroy it and build an office block. Isaac Stem led a group of people who fought to save Carnegie Hall and finally, the city of New York bought it for $5 million. It was then fixed up between 1983 and 1995.

    Advertisements and stories in newspapers about how Carnegie Hall needed help to recover its history led people to send in old concert programmes and information from all over the world. Over 12,000 concert programmes were received and with these it was possible to make a proper record of Carnegie Hall's concert history.

    Carnegie Hall is actually made up of several different halls, but the Main Hall, now called the Isaac Stem Auditorium, is the most famous. The hall itself can hold an audience of 2,804 in five levels of seating.

    Because the best and most famous musicians of all time have played at Carnegie Hall, it is the dream of most musicians who want to be great to play there. This has led to a very old joke which is now part of Carnegie Hall's history. Question: “How do I get to Carnegie Hall?” Answer: “Practice, practice, practice.”

    Adopting (领养) a new pet should be an exciting and rewarding experience. But just as all families are different, so are all pets. Learn what to consider before you find your new furry family member.

    All pets require their owner's time, so Theisen, an expert in pet care, says how much time you can give to the pet is the top thing to consider. "If you adopt a 4-year-old cat, she's not going to need the same amount of care as a 9-week-old dog". says Theisen.

    Like dating and finding the perfect partner, you want a pet that shares your interests and activity levels, particularly if you're looking for dogs. "Consider activity levels in the family," says Theisen. "If you're a couch potato, or in other words, a homebody, look for a pet that matches that activity level."

    Some dogs, like Dalmatians and Terriers, can be loud and noisy and demand a more active lifestyle and room to be outside; they might not fit as well in close living situations as more sedentary pets. The Humane Society of the United States encourages potential owners to research books and websites and talk to other pet owners when considering adopting a new pet.

    Theisen says that potential owners should go beyond the first impression of loveliness and watch how the animals interact with them. "There are dogs that will jump to the gate to meet you," says Theisen. "And there are dogs that sit there with their sad doggy eyes — you know they're not going to be high-energy dogs".

    Some exotic pets, like tortoises and parrots, are likely to live longer than dogs and cats — and even their human owners. They can also grow to be much larger than they were when they first came to live with their owners. Owners should make sure that their living situations should be continually updated and also prepare for the animal's future.

    Ride-hailing apps and robot cars promise to change how we get around and the effects are already being felt. Traffic in New York is slowing down. Jams are common in Manhattan, especially in its business districts. Daytime traffic in the busiest areas now moves almost 20% more slowly than it did five years ago.

    It seems a place ripe for wide use of ride-hailing apps that, you might think, would reduce some of the jams. However, those apps appear to be making things worse as traffic has slowed in line with the growing popularity of apps such as Uber and Lyft, a study by transport expert Bruce Schaller suggests.

    Over the four years of the study, the number of cars in Manhattan seeking ride-hailing fares increased by 81%. There are now about 68, 000 ride-sharing drivers across New York. That's about five times the number of the yellow cabs licensed to operate there, he found. There are so many drivers, his work suggests, who spend about 45% of their spare time just touring for fares. That is a lot of unused cars blocking a lot of busy streets.

    Simple physics explains why ride-sharing vehicles are causing, not curing jams, said Jarrett Walker, a public transport policy expert who has advised hundreds of cities about moving people.

    "Lots of people are deciding that, 'Oh, public transport is just too much trouble this morning,' or whenever, which causes a shift from it," he told the BBC. "That means moving people from larger vehicles into smaller ones, which means more vehicles to move the same people. Therefore, more traffic."

    Data gathered about ride-sharing drivers illustrates how they contribute to congestion (塞车), said Prof. Christo Wilson, a computer scientist at Northeastern University who has studied the services. "You can look at the traffic pattern for the Uber vehicles and it perfectly matches the peaks for the rush hour and the peak time of a day," he said. They are out there in force at the worst possible times.