See a cellphone cover that you like on Taobao? Forget about placing an order, paying the bill online and waiting for days for it to be delivered to you. In the near future, you'll be able to get it in minutes just by hitting “print” on your computer.

    You might find it hard to believe that you could actually “print” an object like you would a picture. But it is not that hard to understand how it would work. Just as a traditional printer sprays ink onto paper line by line, modern 3D printers spread material onto a surface layer by layer, from the bottom to the top, gradually building up a shape.

    Instead of ink, the materials the 3D printer uses are mainly plastic, resin(树脂) and certain metals. The thinner each layer is—from a millimetre to less than the width of a hair—the smoother and finer the object will be.

    This may sound like a completely new technology, but the truth is that 3D printing has been around since the late 1980s. Back then, it was barely affordable for most people, so few knew about it.

    Last year, though, saw a big change in the 3D printing industry—printers became much cheaper. For example, 10 years ago a desktop 3D printer might have cost ￡20，000, while now they cost only about ￡1，000, according to the BBC.

    Taken out of the factory and introduced to more diverse and common uses, 3D printing can create just about anything you can think of—flutes , bikinis, jewelry, aircraft parts and even human organs. In fact, scientists from Cornell University in New York have just made an artificial ear using a 3D printer, according to Science Daily. The fake ear looks and acts exactly like a natural one.

    However, as 3D printing becomes more common, it may bring about certain problems—such as piracy. “Once you can download a coffee maker, or print out a new set of kitchen utensils (餐具) on your personal 3D printer, who will visit a retail  store again？” an expert in 3D printing told Forbes News. Even more frightening, what if anyone in the world could use a 3D printer to print out a fully functioning gun?

    Every pet owner loves his pet. There is no argument here.

    But when we asked our readers whether they would clone their beloved animals, the responses were split almost down the middle. Of the 228 readers who answered it, 108 would lone, 111 would not and nine weighed each side without offering an opinion.

    Clearly, from readers' response, this is an issue that reaches deeply into both the joy and eventual sadness of owning a pet. It speaks, as well, to people's widely differing expectations over the developing scientific procedure.

    Most of the respondents who favored the idea strongly believed it would produce at least a close copy of the original; many felt the process would actually return an exact copy. Those on the other side, however, held little hope a clone could never truly recreate a pet, many simply didn't wish to go against the natural law of life and death.

    Both sides expressed equal love for their animals. More than a few respondents owned “the t dog/cat in the World”. They thought of their pets as their “best friend”, ''a member of the family,” “the light of my life.” They told moving stories of pets' heroism, intelligence and selfless devotion.

Little wonders the loss is so disturbing—and the cloning so attractive. “People become very lose to their animals, and the loss can be just as hard to bear as when a friend or family member dies,” says Gary Kowalski, author of Goodbye, Friend: Healing Wisdom for Anyone Who Has Ever Lost a Pet. “For me, cloning feels like an attempt to turn death away... It's understandable. Death is always painful. It's difficult to deal with. It's hard to accept.”

    But would cloning reduce the blow? This question seemed to be at the heart of this problem.

    Feelings often run high where insects are concerned, with many people even sick when seeing them, let alone touch or swallow them. And yet insects present a huge nutritional opportunity as an increasing global population seeks more sources of food and feed.

    Insects have generally high levels of animal protein and key micronutrients with lower environmental footprints than traditional alternatives, and they can be raised on leftovers. But cultural, social and economic problems remain, reports an article published today in Nutrition Bulletin.

    “Insects present a nutritional opportunity, but it is unclear how their nutritional quality is influenced by what they are fed,” says Darja Dobermann, a researcher at the University of Nottingham. “In ideal conditions, insects have a smaller environmental impact than most traditional western forms of animal protein; less known is how to raise insect production while maintaining these environmental benefits.”

    “Studies overall show that insects could make valuable economic and nutritional contributions to the food or fed systems, but there are no clear regulations in place to bring insects into such supply systems without them turning into a more expensive version of poultry（家禽）for food,” says Dobermann.

    The article highlights how insects have been a source of food for hundreds of years in more than 100 countries with over 2,000 species that can be eaten; in central Africa, up to 50% of dietary protein has come from insects, with their market value higher than many alternative sources of animal protein.

    Insects need to be large enough to make the effort of catching them worthwhile and easy to locate, preferably in predictably large quantities. They are consumed at various life stages, as raw, fried, boiled, roasted or ground food.

    On a Friday night, a poor young artist stood at the gate of the New York railway station, playing his violin. The music was so great that many people stopped to put some money into the hat of the young man.

    The next day, the young artist came to the same place, and put his hat on the ground gracefully. Different from the day before, he took out a large piece of paper and laid it under his hat. Then he began to play the violin. It sounded more pleasant than ever.

    Soon he was surrounded with people who were attracted by the words on that paper. It said, “Last night, a gentleman named George Sang put an important thing into my hat by mistake. Please come to claim(认领) it soon.”

    After about half an hour, a middle-aged man rushed through the crowd to the violinist and said, “Yes, it's you. I knew that you were an honest man and would certainly come here.” The young violinist asked calmly, “Are you Mr. George Sang?” The man nodded. The violinist asked, “Did you lose something?” “It's a lottery ticket(彩票),” said the man. The violinist took out a lottery ticket on which George Sang's name was seen. “Is it?” he asked. George nodded and took the lottery ticket and kissed it, then danced with the violinist.

    The violinist was a student at an arts college and had planned to attend advanced studies in Vienna. Later his classmate asked the violinist, “At that time you needed money to pay the tuition(学费) and you had to play the violin in the railway station every day to make money. Why didn't you keep the lottery ticket for yourself?” The violinist said, “Although I don't have much money, I live happily. But if I lose honesty I won't be happy forever.”

    Through our lives, we can gain a lot and lose so much. But being honest should always be with us.

    Someone sent me an email urging me to acquire a lot more resources, suggesting that I could do so much more good if I had an 8 or 9figure net income (净收入) instead of 6 like I've been doing for years. He claimed to have acquired a great deal of wealth himself and found it highly beneficial to fueling his path with a heart.

As I consider his suggestion, I find myself not having much clarity (清晰的思维) as to what I'd do with 1 million or 10 million more money flowing through my life. I put so much attention on creativity, fulfillment, exploration, relationships, etc. that I find it difficult to intelligently imagine how more financial resources could provide extra fuel for that, except in small ways or in ways that aren't particularly meaningful to me.

Lately I've been considering what it would be like to deliberately reduce my income for a while and see if I could live on much less, just for the experience. What if I capped my net personal income at $10,000 per year, for instance? That isn't such a big deal to me, though, since I already went through a period of low income like that during the 1990s, and I learned that I could still do what I love regardless of income.

I've never worked in a business environment — the only job I've ever had was working for $ 6/hour in a video game store while I was in college. So I've never seen how larger operations allocate resources. That's probably why I haven't pushed myself to acquire more. As I mentioned in my book Money and Your Path With a Heart, my main financial goal in life was to make money irrelevant in my life.

    I'm not interested in building an empire. What interests me is exploring personal growth and sharing what I learn along the way. In some ways I feel that acquiring and allocating more resources could become a big distraction. I'm already doing what I want to be doing, so why risk distracting myself to acquire more resources, especially when I lack the idea about how I should treat such resources? I like having freedom and flexibility, and I don't really see how more resources would meaningfully improve that.

When I was a kid, my mom liked to make breakfast food for dinner every now and then. And I remember one night in particular when she had made breakfast after a long, hard day at hospital.

On that evening so long ago, my mom placed a plate of eggs, sausage and extremely burned toast in front of my dad. I remember waiting to see if anyone noticed! Yet all my dad did was to reach for his toast, smile at my mom and ask me how my day was at school. I don't remember what I told him that night, but I do remember watching him spread butter and jelly on that toast and eat every bite!

When I got up from the table that evening, I remember bearing my mom apologize to my dad for burning the toast. And I'll never forget what he said: "Honey, I love burnt toast."

Later that night, I went to kiss daddy good night and I asked him if he really liked his toast burnt. He took me in his arms and said, "Your momma put in a hard day at work today and she's really tired. And besides, a little burnt toast never hurt anyone!"

You know, life is full of imperfect things and imperfect people. What I've learned over the years is that learning to accept each other's faults is one of the most important keys to creating a healthy, growing, and lasting relationship. This good quality is the base of any relationship—husband­wife or parent­child or friendship! As far as I'm concerned, I'm not the best engineer as expected. However, I have made my efforts. That's enough.

So learn to take the good, the bad, and the ugly parts of your life. Burnt toast isn't a deal­breaker! Don't put the key to your happiness in someone else's pocket but into your own. You will appreciate the value of every soul including yourself.