A great French writer says that we should help everyone as much as possible because we often need help ourselves. The small even can help the great. Then he tells a simple story. An ant is drinking at a small stream and falls in. She tries to reach the side but makes no progress at all. The poor ant, almost exhausted, is still doing her best when a bird sees her. Moved with pity the bird throws a blade of grass into the water. It supports(支撑) the ant like a boat, and the ant reaches the bank. When she is having a rest in the grass, she sees a man walking along barefooted and carrying a gun in his hand. He wants to kill the bird nearby. When he raises his gun to fire, the ant bites him in the foot. So he stops to look down and the bird flies away quickly. It is an animal much weaker and smaller than herself that has saved her life.

    Seventy-three-year-old George McNeilon selected his food in Value Mart very carefully. After leaving the cashier, he estimated (估计) that he had saved 80 cents and thought that he had got good value for his money again.

    At the exit, the chilly wind reminded him of his gloves. "Now where are they?" He searched here and there, but nowhere could he find them. He was sure he was wearing them when he entered the store. The worried man made a second search in all his pockets, again including the grocery bag. He was sure they must have been dropped somewhere inside the store.

    George bought the gloves at a 25% discount, for just $30, ten years ago. They were genuine lambskin (小羊皮), soft, warm and durable. Until then, he had worn cheaper man-made material that lasted no more than three years. His impulsive decision to buy the expensive gloves turned out to be a good one, which even promoted his social status on the bus, as passengers stared at him enviously for six months out of the year. He enjoyed being envied.

    Bad luck, George thought, to lose his expensive gloves on New Year's Eve. He reentered the store and followed the same route he had walked before. But several minutes of anxious search turned out to be in vain. "Society has changed. People have changed …" he murmured to himself. "Years ago, if people picked up something lost, they would give it back."

    Back home, George was at a loss. In deep winter, he could not do anything without a pair of gloves. If he bought cheap ones, he would have to replace them very soon. If he bought new leather ones, they would cost forty dollars.

    After the holiday, poor George decided to buy another pair of leather gloves. Before boarding the subway, he stepped into Value Mart again to see if by any chance his gloves had been returned to the lost and found office.

    "What color are they?" the woman in the office asked.

    "Black," he answered.

    She looked into her drawer and drew out a pair of men's leather gloves.

    "Are they?"

    "Yes! Those are mine!"

Maths and Music

    An excellent way to kill a conversation is to say you are a mathematician. Tell others you are also a musician, however, and they will be hooked. Although there are obvious similarities between mathematical and musical activity, there is no direct evidence for the kind of magical connection many people seem to believe in.

    I'm partly referring here to the "Mozart effect", where children who have been played Mozart compositions are supposedly more intelligent, including at maths, than other children. It is not hard to see why such a theory would be popular: we would all like to become better at maths without putting in any effort. But the conclusions of the experiment that expressed the belief in the Mozart effect were much more modest. If you want your brain to work better, you clearly have to put in hard work. As for learning to play the piano, it also takes effort.

    Surely a connection is quite reasonable. Both maths and music deal with abstract structures, so if you become good at one, then it is likely that you become good at something more general that helps you with the other. If this is correct, it would show a connection between mathematical and musical ability. It would be more like the connection between abilities at football and tennis. To become better at one, you need to improve your fitness and coordination (协调). That makes you better at sport and probably helps with the other.

    Abstract structures don't exist only in maths and music. If you learn a language then you need to understand its abstract structures like grammar. Yet we don't hear people asking about a connection between mathematical and linguistic (语言的) ability. Maybe this is because grammar feels mathematical, so it wouldn't be surprising that mathematicians were better at learning grammar. Music, however, is strongly tied up with feelings and can be enjoyed even by people who know little about it. As such, it seems different from maths, so there wouldn't be any connection between the two.

    Let's see how we solve problems of the "A is to B as C is to D" kind. These appear in intelligence tests but they are also central to both music and maths. Consider the opening of Mozart's Eine Kleine Nachtmusik (小夜曲). The second phrase is a clear answer to the first. The listener thinks: "The first phrase goes upward and uses the notes of a G major chord (和弦); what would be the corresponding phrase that goes downward and uses the notes of a D7?" Music is full of puzzles like this. If you are good at them, expectations will constantly be set up in your mind. The best moments surprise you by being unexpected, but we need the expectations in the first place.

    FOR ALL the technological wonders of modern medicine, from gene-editing to fetal(胎儿的) surgery, health care—with its fax machines and clipboards(资料夹)—is often stubbornly old-fashioned. This outdated era is slowly drawing to a close as, slowly, the industry catches up with the artificial-intelligence (AI) revolution. And it should have happened earlier, argues Eric Topol, a heart doctor keen on digital medicine.

    Dr Topol's vision of medicine's future is optimistic. He thinks AI will be particularly useful for repetitive tasks where errors arise easily, such as selecting images, examining heart traces for abnormal symptoms or recording doctors' words into patient records. In short, AI is set to save time, lives and money.

    Much of this is imaginary—but AI is already defeating people in a variety of narrow jobs for which it has been trained. Eventually it may be able to diagnose and treat a wider range of diseases. Even then, Dr Topol thinks, humans would watch over the rules, rather than being replaced by them.

    The author's fear is that AI will be used to deepen the assembly-line(流水线) culture of modern medicine. If it awards a "gift of time" on doctors, he argues that this additional benefit should be used to extend the time of consultations, rather than simply speeding through them more efficiently.

    The Hippocratic Oath holds that there is an art to medicine as well as a science, and that "warmth, sympathy and understanding may be more important than the surgeon's knife or the chemist's drug". That is not just a cliché: the patients of sympathetic physicians have been shown to do better. As Dr Topol says, it is hard to imagine that a robot could really replace a human doctor. Yet as demand for health care goes beyond the supply of human carers, the future may involve consultations on smartphones and measurements monitored by chat robots. The considerately warmed stethoscope(听诊器), placed gently on a patient's back, may become history.

    During your four years in the college, you'll have many exciting choices to make, the first of which will be your course selection for your first semester. The beauty of this choice is that you can't go wrong! No matter which one of our First-Year Options you select to apply for, you will create a rich intellectual experience to begin your college career.

    Option 1: Liberal Arts Seminar

    The Liberal Arts Seminar is a multidisciplinary(多学科的)course that explores the cultural history of the Mediterranean through fictional and nonfictional books.

Fall schedule: When Registration opens, you will select between one and four additional courses to complete your schedule.

    Option 2: FLL Hager Scholars Program

    The FLL Hager Scholars Program is designed with our most ambitious students of languages and linguistics in mind, and is designed to create for them both a sense of community and opportunities for intellectual growth.

    Fall schedule: When Registration opens, you will select between one and three additional courses to complete your schedule.

    Option 3: Ignatius Seminars

    Offered only in the first semester, Ignatius Seminars introduce students to the depth and diversity of Georgetown's dynamic intellectual community.

    Fall schedule: When Registration opens, you will select three or four additional courses to complete your schedule.

    Option 4: Traditional First-Year Academic Program

    With this program, you'll take your first step into the college's rich and varied core courses and explore your fields of interest in free optional coursework.

    Fall schedule: When Registration opens, you will build a schedule of four or five additional courses from the full college curriculum.

    I'd done it before, and so I had no reason to believe that this time would be any different. I was sure that when I returned home from my mission trip. As always, I'd bring back nothing more some mud on my boots. A hole or two in my jeans and, of course, a lot of great memories.

    The summer before my high school graduation, I went to West Virginia with others as volunteers to repair the homes of those in need. Arriving at our destination, my group was assigned the task of rebuilding sections of a home that had been damaged by fire. No sooner had we parked on the home's dirt driveway than we saw an excited little girl, no more than six years old, standing in the doorway of the family's temporary home. Shoeless and wearing dirty clothes and the biggest smile I'd ever seen, she yelled, "Ma, Ma, they really came!" I didn't know it then, but her name was Dakota, and four more days would pass before she'd say another word near me.

    Behind Dakota was a woman in a wheelchair — her grandmother, we'd soon learn. I also discovered that my job that week would be to help change a fire-damaged dining room into a bedroom for this little girl. Grabbing our tools, we went to work. Over the following days, I noticed Dakota peeking at us every now and then as we worked. A few times, I tried talking with her, but she remained shy and distant, always flying around us like a tiny butterfly but keeping to herself.

    By our fifth and final day, however, this was about to change.

    Before I went to work on her home on that last morning, I spoke for a moment or two with the grandmother. I was especially pleased when she told me how much Dakota loved her new room — so much, in fact, that she'd begged to sleep in it the previous night, even though it wasn't quite ready. As we talked, I noticed something I hadn't seen before — Dakota was hiding behind her grandmother.

    Cautiously, she stepped into view, and I could see that just like her clothes, her face was still dirty. But no amount of soil could hide those bright blue eyes and big smile. She was simply adorable. I wanted so much to hug her, but respecting her shyness, I kept my distance.

    Slowly, she began walking toward me. It wasn't until she was just inches away that I noticed the folded piece of paper in her tiny hand. Silently, she reached up and handed it to me. Once unfolded, I looked at the drawing she'd made with her broken crayons on the back of an old coloring book cover. It was of two girls — one much taller than the other — and they were holding hands. She told me it was supposed to be me and her, and on the bottom of the paper were three little words that instantly broke my heart. Now almost in tears, I couldn't control myself anymore — I bent down and hugged her. She hugged me, too. And for the longest time, neither of us could let go.

    By early afternoon, we finished Dakota's bedroom, and so I gladly used the rare free time to get to know my newest friend. Sitting under a tree away from the others, we shared a few apples while she told me about her life. As I listened to her stories about the struggles she and her family went through daily, I began to realize how boring various aspects of my own life were.

    I left for home early the next morning. I was returning with muddy boots and holes in my Jeans. But because of Dakota, I brought back something else, too-a greater appreciation for all or the blessings of my life. I'll never forget that barefoot little butterfly with the big smile and dirty face. I pray that she'll never forget me either.