During my free time one day, I wandered down a lonely path into the woods and sat against a tree. Then I saw one of the camp counselors approaching me. "Oh great," I thought, since counselors were always trying to cheer you up or make you laugh.

    "Hey," he said, "mind if I have a seat?" I shrugged(耸肩). I wasn't going to encourage him, but I couldn't exactly stop him, either. He sat down alongside me and extended a hand. "I'm Gary," he said, "and you're Erica, right?" I nodded. "You don't exactly look like you're having a good time," he began.

    I crossed my arms and gritted my teeth. "Look," I said, "I didn't want to come to camp, I don't like it, I'm not having fun, and it basically stinks." I glared at Gary.

    "So there's nothing here at all for you, huh?" he asked.

    "Nothing," I answered.

    "Let me show you something," said Gary. He got up, and I followed him along the path until I heard a sound like a roaring freight train.

    "What's that?" I asked.

    "Wait and see," he replied, with a small smile.

    When we rounded the corner, I couldn't believe what I saw. There was the biggest waterfall I could ever imagine, right in front of me. "Cool!" I said, and I could feel my eyes getting bigger and a smile tugging at my mouth.

    "Still think there's nothing here for you?" asked Gary. "Because there's a whole lot more of this kind of 'nothing' around here." I had to admit, the waterfall was impressive.

    "Look," said Gary, "camp is what you make it. You can be sullen(阴郁的) and closed-minded and have a rotten four weeks, or you can take a look around you and see some of the incredible sights and appreciate the opportunity. It would be useless for me to try to make you have fun. You can only do that for yourself. But if you loosen up a little, you might actually have a good time." With that, he turned and walked away, leaving me on the path.

    That night, by the campfire, I found myself singing along with everyone else. By the time the four weeks were up, I didn't want to leave. I'd seen some amazing things and made some great friends.

    Beauty is where you find it. Life is what you make it. I think it's going to be a good year this year. I mean, I'm going to work to make it one. Maybe if I'm lucky, I'll get to go back to camp next year!

    Birds' feathers are some of the most strikingly variable animal characteristics that can be observed by the eyes. The patterns that we see in birds' feathers are made up of combinations of scales, bars, and spots.

    We already know why birds have colored feathers. Generally, the color of feathers may protect a bird from being noticed by the enemy in the environment, or it can make a bird more appealing to potential mates by helping them to stand out. These aspects are well known. A greater mystery has been how the patterns are created.

    Dr. Ismael Galván and his team studied the color of feathers to see what types of colors were present in birds' complex feather patterns. The study shows they mainly consist of two types of colors: melanin（黑色素）, which produce a range of black, grey, brown, and orange color, and carotenoids（类胡萝卜色素）, which are used to create brighter colors.

    Birds cannot produce carotenoids on their own. For feathers with bright colors, birds must consume food items that contain these paints, and the carotenoids circulate through the blood and to the feather. Melanin, on the other hand, is produced by special cells in the birds' bodies.

    The team found that about 32% if the species studied have complex color patterns, with the vast majority of these complex patterns produced by melanin rather than carotenoids. If the birds were artists, they would use carotenoids as a broad brush to produce color patches, with melanin as a detail paint brush to produce more complex designs.

    But a few birds are exceptions to this rule: Three bird families do have complex patterns without melanin.

    Water is very important to living things. Without water there can be no life on the earth. All animals and plants need water. Man also needs water. We need water to drink, to cook our food and to clean ourselves. Water is needed in offices, factories and schools. Water is needed everywhere.

    There is water in seas, rivers and lakes. Water is found almost everywhere. Even in the desert part of the world, there is some water in the air. You can't see or feel it when it is a part of the air. The water in the seas, rivers and lakes is a liquid, the water in the air is a gas, and we call it water vapor (蒸汽).

    Clouds are made of water. They may be made of very small drops of water. They may also be made of snow crystals(结晶体). Snow crystals are very small crystals of ice. Ice is frozen water. It is a solid. There can be snow and ice everywhere in winter.

    Water may be a solid or a liquid or a gas. When it is a solid, it may be as hard as a stone. When it is a liquid, you can drink it. When it is a gas, you can not see or feel it.

    Many Americans buy an evergreen tree for Christmas. They put the tree in their home and hang small lights and colorful things on it. The evergreen is usually a pine or a fir tree (冷杉树). It remains green during the cold, dark months of winter in the northern part of the world. So it is a sign of everlasting life.

    Early long ago, Romans probably planted evergreen trees during a celebration in honor of their god of agriculture. The Christmas tree may have developed from a popular play performed hundreds of years ago in what is now Germany. Traditionally, the play was on December 24th, the day before Christmas. The play was about the first people that God created—Adam and Eve. People put apples on an evergreen tree to represent the tree of knowledge in the Garden of Eden.

    By the year 1600, some Germans began bringing evergreen trees into their homes. They put fruit, nuts and sweets on the trees. They gave the food to the family members and friends after the holiday season. Some people say the German religious reformer (宗教改革者) Martin Luther was the first person to add lighted candles to the tree. They say he did this to show how wonderful the stars had appeared as he travelled one night.

    In the early 1800's, German settlers in the state of Pennsylvania were the first to celebrate the holiday with Christmas trees in the United States. The Christmas tree tradition spread to many parts of the world. Today, some form of the Christmas tree is part of most Christmas celebrations.

    If you are the kind of tourist who likes to visit places with outstanding landscapes and multicultural cities, then Asia is the place to go. Take a cruise(巡游)to Asia and you will not be disappointed.

    The Finest Asian Cruise Explorations

    Tourists who want to visit several Asian countries understand that cruising there is the best alternative. You can decide to take a two-week cruise, starting from Sri Lanka to Thailand. There's also a three-week cruise that starts off in China all the way to Japan. A most popular voyage is one that starts from Hong Kong to Singapore.

    The Best Time to Travel

    When touring Asia, it's best to understand that different cruise lines have different travelling timelines. You can be caught in the rain during your tour(October to December in Malaysia and December to February in Indonesia). Most cruises take place from December to the end of March.

    Booking Cruise-ship Tours

    Given that you'll probably be taking long flights to get to South Asia and the Far East, the budget will be large, especially if you are visiting as a family. In addition, many people tour this region, so it would be best if you book early when the prices are more appealing.

    Activities

    There are so many ports in Asia and this might bring a challenge if you want to get somewhere in time. Make sure you plan your day-trips in advance and follow the cruise line tours to avoid missing the boats. Apart from visiting the cities, you could also go to Borneo, Indonesia to see the orangutans(猩猩). You can also hop across several islands from Bali, appreciate the colorful floats as well as the cherry blossoms in Japan and visit the floating fish farms in Vietnam.

    Mid-afternoon on a particularly busy Tuesday, I took leave of my desk at work and walked into a local Starbucks, only to find a space where neither my clients (客户) nor my children would ask me to do something.

    Inside, I ran into Kate, a co-worker of mine. The topic of parenthood came up. I complained about how packed my schedule was. From the minute I woke up to the minute I fell asleep, I was constantly in demand and always had someone knocking at the door. But a bit of sadness seemed to come over Kate's face.

    "Well, my daughter's in San Francisco and she doesn't seem to need me at all these days." Kate said. It was in that moment that I realized although I might often feel in high demand, there will come a day when I'll actually miss that same stress I now complain about.

    And as our conversation continued, it turned to our children's younger years, with Kate smiling proudly, thinking of the little boy and girl she raised who are now a man and a woman. But I noticed her smile was marked with regret. She explained that she often wondered about what she could have done differently when her children were in their earlier years.

    This got me thinking Is regret an unfortunate footnote (注脚) to parenthood? With that in mind, I asked six older parents one question: What is your biggest regret from your early days as a parent?

    It turned out that all of them thought they could have done it better. But, each of them also has a strong, healthy relationship with their kids. Whatever regrets their parents might have had about their upbringing, one thing is clear—it didn't affect them in a meaningful way.

    The bottom line is, we all feel like we could be doing this parenting thing better, And quite clearly, years later, we're still going to look back and wish we tried things differently. But the past can't be changed, and neither should it.