Mark Twain, the famous American writer and a great master of humor, liked to play jokes on others. But once a joke was played on him. One day Mark Twain was invited to give a talk in a small town. At lunch he met a young man, one of his friends.

    The young man said that he had an uncle with him. He told Mark Twain that his uncle never laughed or smiled, and that nobody and nothing was able to make his uncle smile or laugh.

    "You bring your uncle to my talk this evening," said Mark Twain. "I'm sure I can make him laugh."

    That evening the young man and his uncle sat in the front. Mark Twain began to speak. He told several funny stories and made everyone in the room laugh. But the man never even smiled. Mark Twain told more funny stories, but the old man still kept quiet. Mark Twain continued to tell his funny stories. Finally he stopped. He was tired and quite disappointed.

    Some days later, Mark Twain told another friend what had happened." Oh," said his friend, "I know that man. He's been deaf for years."

    Last week I was riding my special motorbike and then stopped at a convenience store. As I was getting my wheelchair off the back, a man watched me from his car and I noticed a wheelchair in his back seat. We spoke for a moment and I asked him about the wheelchair. He answered that it was for his daughter. “Well, do you think she would like to go for a ride on my motorbike with me?” I asked. He seemed shocked that a total stranger would ask him this. He thought about it for a second and said, “OK, as long as I can follow you.”

    He introduced me to Amy and he sat her on my back seat. Her father followed me for a few miles and she talked non-stop about what she wanted for Christmas.

    As we came back to the convenience store, she said, “This ride is the best Christmas present I could ever receive. I have been in a wheelchair my whole life and didn't know I could do this.” I told her about some of the other things I do (ski, travel the world by myself, etc.). As her father was taking her off my bike, she turned to him and said, “Oh Daddy, I'm going to be OK. Mr. Bryant does all kinds of things, and I will too.” Her father turned away as a tear of joy rolled down his cheek. He hugged me and said, “I was sitting here praying for a gift for Amy that would encourage her. She often felt that her life was dull compared to other children. God answered my prayer just now. Now I pray that God will bless you for your gift to Amy today.” I believed what he said. Being kind and thoughtful to others, we can be an answer to prayer.

    When you cross deep water driving too fast, you risk splashing water up into the air box and having it get sucked into the internal engine, which is more common than you think. There are a few steps you should take to clear the water out before you try to start it:

    ⒈First, drain the fuel tank, fuel lines and the oil. While it's draining, put a fan on the wiring and dry it out. Remove and clean the carburetor (化油器).

    ⒉Take the plugs out of the engine and turn it over to force any water out. Water will come out with the oil. Add oil to the engine and turn it over again, without the plug in. Let it sit for a while, then observe the oil to tell if there's any water in it (it will look like a white milky substance if there is water mixed with the oil). If it's there, drain it again and start over until there is little or no white showing in the oil.

    ⒊Now re-install the spark plug, add gas, then try to start the engine. You should have a can of ether (乙醚) handy just in case it's stubborn, but don't use too much. If it starts, let it run for a few minutes without making it work faster.

    ⒋After it runs for several minutes, shut it off, drain the oil and change the filter(过滤网). Run it again for a few minutes then shut it off and checks again for milky colored oil. If you have none, you should be good to go.

    ⒌If you cannot start the engine, you may have already ruined it and you will probably need to seek a professional to repair it, or, more likely, you'll have to replace it.

    Here's a list of books I'm looking forward to this fall season. Not all of them will rise to the level of the advertisement, but it's an abundant crop.

    "Home After Dark" by David Small (Liveright, Sept.11)

    In 2009, Small published a celebrated graphic memoir (回忆录) called "Stitches". Now the Caldecott Medal winner is back with a graphic novel about a motherless 13-year-old boy brought up in an unhappy home in California. This is a tale told in few words and many striking images. On Sept. 11 at 3p.m. . Small will be at Amazonbooks at Union Market. More information at www.amazon.com/graph-tale.

    "Waiting for Eden" by Elliot Ackerman (Knopf, Sept. 25)

    This brief novel is related by a dead soldier who is watching over a horribly burned partner in a Texas hospital. That sounds embarrassingly emotional, but Ackerman, who served in a Navy in Iraq and Afghanistan, is one of the best soldier-writers of his generation. More information at www.amazon.com/military-essay.

    "All You Can Ever Know" by Nicole Chung (Catapult, Oct. 2)

    Chung, the editor of the literary magazine Catapult, was adopted as a baby by a white family in Oregon. In this memoir, she writes about her childhood, her Asian American identity and her search for the Korean parents who gave her up. More information at www.amazon.com/politics-prose.

    "Unsheltered" by Barbara Kingsolver (Harper, Oct. 16)

    Alternating between past and present, this novel tells the story of a woman investigating a late-19th-century science teacher who was caught up in the controversy over Darwinism. Like her other novels, this one promises to explore social and scientific problems. Visit www. amazon.com/tech-science for more information.

    When returning to south-western Germany, where my parents live, it is compulsory for me to go on a hike to connect with nature and reconnect with myself. So, that is exactly what I did the first sunny Sunday back in the beautiful Black Forest. The Huzenbacher See is a tarn in the middle of the northern Black Forest with abundant nature surrounding it. Approaching it after a good hour walk, I saw fascinating blue dragonflies in quantity that attracted us by the way they flew around. They didn't stand still for a photo, as they landed on leaves for a split second. We were also surprised at the yellow water lilies that can be seen floating on its surface between June and July.

    Sitting down at one of the benches surrounding the lake for a picnic was satisfying in two ways. I was aware of the world's beauty that gave me the energy to continue up the mountain to reach the most amazing view looking over the lake. The other was to really fill myself up in order to continue the adventure adequately, full up on some snacks and refreshing water from the well.

    The hike up wasn't as hard as expected and a good path was provided with dirty rocks and slippery stones all under the shade of the tall trees. This took about an hour and a half until reaching the beautiful view of the lake and land below. Once we had taken in the astonishing views, the walk back down took another hour or so, making the hike a 3-to4-hour round trip, which was well worth it!

    Simply being back in the Black Forest and having such pleasant hikes is definitely good for the soul and I highly recommend getting yourself outside, be it in the Black Forest or anywhere outdoors. Get your intake of vitamin D and, most importantly, take in the moments that nature has to offer.

I often wondered what it would be like to have cancer.

I didn't expect to find out, though, at last not for decades. I have always been healthy and strong; I regularly do hot yoga and swim two kilometers in a bay near my home in Sydney.

But now I know: it felt as if I was carrying a baby. Tumors (肿瘤) that silently grew inside me suddenly became bigger one weekend.

Then, one Saturday in June, I was struck with sharp pain and ended up in the hospital.

My doctor said it might be very serious. I spent two weeks waiting for the operation, not knowing if I'd live to the end of the year.

In the days before the operation, I turned off my phone and computer. I prayed so hard that I grew unnaturally calm.

The operation lasted five hours. The mass was fully removed, but it was unexpectedly complicated. I was in special care for eight days, in the wires, machines, with pipes in my lungs and liver.

Luckily, the operation was very successful and I am slowly growing stronger. I am walking upright again and waking without great pain. I can now drive, and am preparing to return to work. My prognosis (预后) is good, but I will need to live with the fear of return.

Everyone suddenly seems consumed with foolish worries. I have a different idea about the complaints posted by some Internet users who had the flu, were upset by the upcoming exams or burdened by work. I want to scream: BUT YOU ARE ALIVE! Alive! Each day is a gift, especially if you are upright and able to move with ease, without pain.

I'm still struggling with what all of this means. But in this short time, a truth became even clearer to me.

We should not have to move to the woods like Henry David Thoreau to "live meaningfully". It would be impossible and frankly tiring to live each day as if it were your last. My doctor asked me a few days ago how I became so calm before the operation. I told her: I prayed; I locked out negativity and drew my family and friends near; I tried to live meaningfully.

She said, "Actually you should do that for the rest of your life."