Americans drove more miles in 2015 than any year since the U.S. government started keeping records 45 years ago. The U.S. Department of Transportation (USDT) recently reported that Americans drove a record of 3.148 trillion miles last year. In case you are wondering, that is enough to take 337 round trips from Earth to Pluto.

    There are a number of reasons why Americans are driving more miles. The social experts agree that the first is the price of gas, which has dropped to the level of the year 2004 in the past year. The American Automobile Association (AAA) said that the average price of gas was just $1.71 a gallon. That could be the lowest price since 2004.

    P.J. Sriraj, a director of the Urban Transportation Center at the University of Chicago, notes that the lower cost to fill up a car is just one reason. Another reason is that more Americans are back to work after the 2008 economic recession, and they drive to their jobs.

    Besides, more Americans have to travel a long distance every day between home and the office. There are a lot of Americans who must travel more than 45 miles per day for their jobs. And as for many, there is not enough public transportation.

    Because of the heavy traffic, roads are becoming more and more crowded. While modern cars are more fuel-efficient, the improvement is not enough to offset more cars on the road. “There is no doubt that driving more will make the air dirtier,” said P.J. Sriraj. And many Americans showed a great concern in a recent survey.

    If you are human, you can't help but experience times when everything seems to be going wrong and you feel as if your life is completely out of control. It is during those “down times” that words of encouragement from family, friends, co-workers or even strangers can lighten your spirits. It is also during those times that destructive(有害的) words can sink you deeper and deeper into depression(沮丧).

    For example, consider this story about a group of frogs who were traveling through the woods when two of them fell into a deep pit（坑）. All of the other frogs gathered around the pit. When they saw how deep the pit was, they told the two unfortunate frogs they would never get out.

    The two frogs ignored the comments and tried to jump out of the pit. The other frogs kept telling them to stop. Finally, one of the frogs took heed of what the other frogs were saying and simply gave up. He fell down and died. The other frog continued to jump as hard as he could. Once again the crowd of frogs shouted at him to stop the pain. The more they shouted, the harder he jumped and finally he made it to safety.

    When he got out, the other frogs asked him why he continued to jump when they were all shouting at him to simply quit. The frog explained to them that he was a little bit deaf. He thought they were encouraging him the entire time.

    Every time you have a chance to say either something positive or negative to another human being, do choose the chance to say something positive! Don't let those opportunities get away from you. Your words have a large amount of power. Use them wisely. You really never know just how much they can mean to someone else.

    A 525-year-old copy of a letter by Christopher Columbus, stolen from the Vatican, was returned this week. An investigation by the United States Department of Homeland Security and the Vatican located the letter.

    “We are returning it to its rightful owner, “said U.S. ambassador to the Vatican, Callista Gingrich, at a ceremony in the Vatican Library. Columbus wrote the letter to the king and queen of Spain after discovering “The New World.” He described what he had found and requested money for another trip. His original letter was written in Spanish. But several copies of a Latin translation were made to spread news of his discovery to the royal courts of Europe and the Pope.

    One of the Latin letters, copied by Stephan Plannack in 1493, was put in the Vatican Library. Known as the Columbus Letter, it has eight pages, each about 18.5 cm by 12 cm. In 2011, an American expert in rare manuscripts received a similar looking letter. After reviewing it, he decided that it was real. The year before, the same expert had studied a Columbus Letter in the Vatican Library and suspected that it was a fake. One reason was that the stitching (针脚) marks on the letter were not the same as those on the cover. The letter in the United States, however, had the exact same stitching marks as the leather cover of the fake letter he had studied in the Vatican.

    The expert, who was not identified, contacted Homeland Security art investigators, who began working with Vatican inspectors and rare book experts. They believed that someone took the real letter out of its cover at the Vatican Library and replaced it with an artificial one. Archbishop Jean-Louis Brugues is the Vatican's chief librarian. He said, “We do not know exactly when the substitution took place. We will probably never know who the forger (伪造者) was.”

    Their investigations found that Marino Massimo De Caro, a well-known Italian book thief, had sold the real letter to a New York book dealer. De Caro is serving a seven-year prison sentence in Italy for stealing about 4,000 ancient books and manuscripts from Italian libraries and private collections. The late collector David Parsons bought the letter for $875,000 in 2004. After the investigations, his widow agreed to return the letter to the Vatican Library. Officials said the letter is now worth about $1.2 million.

    The medical world is gradually realizing that the quality of the environment in hospital may play an important role in helping patients to get better.

    As part of a nationwide effort in Britain to bring art out of the museums and into public places, some of the country's best artists have been called in to change older hospitals and to soften the hard edges of modern buildings. Of the 2500 national health service hospitals in Britain, almost 100 now have very valuable collections of present art in passages, waiting areas and treatment rooms.

    These recent movements first started by one artist, Peter Senior, who set up his studio at a Manchester hospital on northeastern England during the early 1970s. He felt the artist had lost his place in modern society, and that art should be enjoyed by a wider audience.

    A common hospital waiting room might have as many as 5,000 visitors each week. What a better place to hold regular exhibitions of art! Senior held the first exhibition of his own paintings in the outpatients waiting area of the Manchester Royal Hospital in 1975. Believed to be Britain's first hospital artist, Senior was so much in demand that he was soon joined by a team of six young art school graduates.

    The effect is striking. Now in the passages and waiting rooms the visitor experiences a full view of fresh colours, playful images and restful courtyards.

    The quality of the environment may reduce the need for expensive drugs when a patient is recovering from an illness. A study has shown that patients who had a view onto garden needed half the number of strong pain killers compared with patients who had no view at all or only a brick wall to look at.

    My motivation for starting our family tradition of reading in the car was purely selfish: I could not bear listening to A Sesame Street Christmas for another 10 hours. My three children had been addicted to this cassette on our previous summer's road trip.

    As I began to prepare for our next 500-mile car trip, I came across a book Jim Trelease's The Read Aloud Handbook. This could be the answer to my problem. I thought. So I put Roald dahl's James and the Giant Peach into my bag. When I began to read aloud the tale of the boy who escapes the bad guys by hiding inside a giant peach, my three kids argued and wrestled in their seats. But after several lines, they were attracted into the rhythm of the words and began to listen.

    We soon learned that the simple pleasure of listening to a well-written book makes the long miles pass more quickly. Sometimes the books we read became highlights of the trip. I read Wilson Rawls's Summer of the Monkeys as we spent two days driving to the beach. We arrived just behind the power crews restoring (恢复) electricity after a tropical storm. The rain continued most of the week, and the beach was covered with oil washed up by the storm. When we returned home, I asked my son what he liked about the trip. He answered without hesitation, “The book you read in the car.”

    Road trips still offer challenges, even though my children now are teenagers. But we continue to read as we roll across the country. And I'm beginning to see that reading aloud has done more than help pass the time. For at least a little while, we are not shut in our own electronic worlds. And maybe we've started something that will pass on to the next generation.

    This is a family story my father told me about his mother, my grandmother.

In 1949, my father had just returned home from the war. On every American highway you could see soldiers in uniform hitchhiking home to their families, as was the custom at that time in America.

    Sadly, the thrill of his reunion with his family was soon overshadowed. My grandmother became very ill and had to be hospitalized. It was her kidneys, and the doctors told my father that she needed a blood transfusion immediately or she would not live through the night. The problem was that grandmother's blood type was AB-, a very rare type even today, but even harder to get then because there were no blood banks or air flights to ship blood. All the family members were typed, but not one member was a match. So the doctors gave the family no hope; my grandmother was dying.

    My father left the hospital in tears to gather up all the family members, so that everyone would get a chance to tell grandmother goodbye. As my father was driving down the highway, he passed a soldier in uniform hitchhiking home to his family. Deep in grief, my father had no inclination at that moment to do a good deed. Yet it was almost as if something outside himself pulled him to a stop, and he waited as the stranger climbed into the car.

    My father was too upset to even ask the soldier his name, but the soldier noticed my father's tears right away and inquired about them. Through his tears, my father told this total stranger that his mother was lying in a hospital dying because the doctors had been unable to locate her blood type, AB-, and if they did not do it before nightfall, she would surely die.

    It got very quiet in the car. Then this unidentified soldier extended his hand out to my father, palm up. Resting in the palm of his hand were the dog tags from around his neck. The blood type on the tags was AB-. The soldier told my father to turn the car around and get him to the hospital.

    My grandmother lived until 1996, 47 years later, and to this day no one in our family knows the soldier's name. But he is always remembered by us.