It was Mother's Day morning last year and I was doing my shopping at our local supermarket with my five-year-old son, Teayson. As we were leaving, we found that only minutes earlier an elderly woman had fallen over at the entrance and had hit her bead on the concrete. Her husband was with her, but there was blood everywhere and the woman was embarrassed and clearly in shock.

    Walking towards the scene, Tenyson became very upset about what had happened to the couple. Ile said to me. “Mums it's not much fun falling over in front of everyone.”

    At the front of the supermarket a charity group had set up a stand selling cooked sausages and flowers to raise funds. Tenyson suggested that we should boy the lady a flower. “It will make her feel better,” he said. I was amazed that he'd come up such a sweet idea. So we went over to the flower seller and asked her if we could buy a flower for the lady to cheer her up. “Just take it,” she replied. “I can't take your money for such a wonderful gesture.”

    By now paramedics(救援人员) had arrived, and were attending the injured woman. As we walked up to her, my son became intimidated by all the blood and medical equipment. He said he was just too scared to go up to her.

    Instead I gave the flower to the woman's husband and told him. “My son was very upset for your wife and wanted to give her this flower to make her feel better.”

    At that, the old man started crying and said, “Thank you so much, you have a wonderful son, Happy Mother's Day to you.”

The man then bent down and gave his wife the flower, telling her who it was from. Though badly hurt and shaken, the old lady looked up at Tenyson with love in her eyes and gave him a little smile.

    Franz Boas was born in Minden, Germany, in 1858. After studying at the Universities of Heidelberg, Bonn, and Kiel, he received a doctor's degree in physics from the University of Kiel in 1881. His first fieldwork experience was among the Eskimo in Baffinland, Canada, in 1883-1884. In 1886, on his way back from a visit to the Kwakiutl Indians of British Columbia, Canada, he stopped in New York and decided to settle.

    Boas's first teaching position in America was at the newly founded Clark University in 1888. Eleven years later, he became professor of anthropology(人类学) at Columbia University. From 1896 to 1905 he was also curator(馆长) of anthropology at the American Museum of Natural History in NY. There he organized and took part in the Jesup North Pacific Expedition of 1902, which suggested the possibility of a strong relationship between northern Asian and northwestern Native American cultures. After guiding the Columbia Anthropology Department for 41 years, Boas became Professor Emeritus(荣誉退休教授) in 1937.

    Boas's anthropological studies have become classics in the field. He showed the necessity of studying a culture in all its aspects, including art, history, dance, language as well as the characteristics of the people. He pointed out that the differences in peoples were the results of historical, social and geographic conditions and all populations had complete and equally developed culture. He argued that no truly pure race exists, and that no race is superior to any other.

    In 1911 Boas published the Mind of Primitive Man, a series of lectures on culture and race. In the 1930s the Nazis in Germany burned the book. Boas revised the book in 1937 and put his anthropological ideas about racism into popular magazine articles. In 1942, Boas died, having founded anthropology as a recognized social science.

    So often I hear people justify（为……辩解）their lack of family trips because their children are not old enough to remember them. This reason is so confusing to me. Who would travel based on another person's memory?

    Of course the kids aren't going to remember anything in infancy（婴儿期）, but you will. You will remember all the sweet memories you had with them.

    My parents would take me to Guatemala as a child. I don't remember a lot of the trip, but I do know that when I went back as a young adult, I felt comfortable in my surroundings. I didn't spend my time there discovering a new way of life. I spent the time having fun with my family. I love looking at pictures that we took together when I was my son's age. I don't remember them, but that's not the point. The point is, I was there with my family, and I know I was happy.

    Now that I'm a parent, I can't help but do the same. Last year, we took our 2-year-old son to Disney alongside his great-grandmother. His great-grandmother had recently begun to suffer from Alzheimer's. That trip was timed in the most magical way — right before my son was old enough to remember it and right before his great-grandmother began to forget. This makes me want to cry for them both. How did we get so lucky to have this moment to share with each other before big changes influenced our family forever?

    Realistically speaking, many families do not have the opportunity to travel internationally or visit pricey theme parks. I understand this more than you know, but I'm talking beyond that. They are young but these forgettable moments are still changing them. They will shape your child into who they will be tomorrow. The memories we absorb as their parents are also as influential as we have not finished learning our truths either.

    We all know that water is tasteless. But it happens from time to time: you pick up the bottle of water you didn't finish yesterday, and it tastes strange. Most often, you tend to drop the bottle in the trash bin, believing that the water has gone bad. But is it true?

    According to Time, of course not, taste has little to do with quality of water.

    According to Time, when water is exposed to the air for 12 hours, carbon dioxide interacts with the H2O in the water, and the pH value lowers slightly. As a result, the water has a different taste.

    "But it's most likely safe to drink," Norwegian expert Truls Krogh told Science Nordic. "If the water is covered and of good quality to start with, in principle it can last a thousand years. That's because when water is fresh, it contains little organic matter. As long as water is held in clean glasses or bottles, no pollutants will enter it to harm our health."

    People in countries like the US, the UK and Australia usually drink tap water. According to Time, if tap water is drunk within six months, the chlorine (氯气) in the water will be enough to kill any bacteria and keep it safe to drink.

    However, there are also some exceptions. If you accidentally put your fingers into water or store water in unclean containers day after day, microorganism (微生物) will enter the water.

    With the help of surrounding temperature, and sunlight streaming through windows, these microorganisms multiply quickly. Sooner or later, the water will be in the charge of the unfriendly bacteria. And if you drink the water too often, then you're more likely to be ill.

    And what about water in plastic bottles? Heat and plastic are a bad combination, US researcher Kellogg Schwab stresses. When plastic bottles are used at high temperatures, they produce a chemical called BPA. BPA is something that affects hormones (荷尔蒙) and research has tentatively linked it to "several health damage, including heart disease and cancer", Time reported.

    Schwab suggests replacing disposable (一次性的) plastic bottles with the refillable containers made of metal or glass to deal with BPA.

    Once again DC Comics and Warner Bros. have divided fans and critics over their latest superhero film.

    There had been worrying news about Justice League in the months before its release, with a lot of reshoots of scenes, a new director being brought in to finish the film after original director Zack Snyder's tragic loss of his daughter and, of course, a lot of talk about Ben Affleck's future in the role of Batman.

    Some people are saying that Justice League is another big disappointment, that it could have been incredible and instead fails to really entertain. Others say that Warner Bros. have finally got it right and that the future for the League looks bright.

    My opinion lies somewhere in the middle. The film was by no means a disappointment: it was exciting, funny and a lot of fun to watch. There's something special about watching the heroes from your childhood brought to life on the big screen and maybe that is affecting my opinion.

    However, I will say that a lot of work needs to be done if the producer wants to make a great success. Although the film was good, it was obvious which scenes had been reshot and how the characters had been changed. I also have to mention the several scenes in which the special effects were very badly done; these are the kinds of problems that you don't expect to see in a film with such a big budget.

    Another point to add is that it is good to see the producer making Superman slightly a brighter character and adding some jokes to the plot to keep things fun. But the producer must be careful not to make the mistake that another film producer—here, not mentioning the name—is coming very close to doing: turning all of the films into bright and colorful shows and losing a lot of seriously good stories.

    In the end, Justice League is not a perfect film but it is definitely not a terrible one. A lot of work is still to be done but I hope that DC does not completely lose its darker side.

Plan your vacation. The following four places are your fantastic destinations. You can enjoy a completely different experience.

Israel

If you're looking for a once-in-a-lifetime experience, National Geographic 'Travel says visitors should head to Jerusalem to celebrate Easter with thousands of pilgrims (朝圣者). If the crowds get too huge, visitors are told to take a boat ride to King Herod's 2,000-year-old Masada fortress (要塞) or set off on a peaceful morning boat ride across the sea of Galilee.

Panama

Costa Rica and the Caribbean often enjoy much more popularity than Panama, but visitors should consider the centre American country if they want a "less-crowded paradise". The travel site states, "Here, horses are still the primary means of transportation and local fishermen serve fresh seafood and fruit from their home kitchens for roughly $ 6 a plate."

Svalbard

If you're a fan of winter activities, but are in need of some sun, then perhaps a trip to Svalbard is a good choice. National Geographic Travel notes, "The Norwegian archipelago of Svalbard is located about 620 miles south of the North Pole. In late spring, the sun never falls below the horizon—meaning you can take in all the Vitamin D you desire." Popular activities in the area include hiking and wildlife spotting.

Namibia

During spring, Namibia is regarded as the perfect destination with reduced travel costs on cooler evenings. In late May, National Geographic Travel says that the watering holes start to dry up again, which attracts giraffes and black rhino from their hiding spots. If you're fond of adventurous exploration, head to the Namibia Desert for a spot of sand boarding.