【推荐2】Blind imitation is self-destruction. To those who do not recognize their own unique worth, imitation appears attractive; to those who know their strength, imitation is unacceptable.

In the early stages of skill or character development, imitation is helpful. When I first learned to cook, I used recipes and turned out some tasty dishes. But soon I grew bored. Why follow someone else’s way of cooking when I could create my own? Imitating role models is like using training wheels on a child’s bicycle; they help you get going, but once you find your own balance, you fly faster and farther without relying on them.

In daily life, imitation can hurt us if we subconsciously (下意识地）hold poor role models. If, as a child, you observed people whose lives were bad, you may have accepted their fear and pain as normal and gone on to follow what they did. If you do not make strong choices for yourself, you will get the results of the weak choices of others.

In the field of entertainment, our culture praises and admires celebrities. Those stars look great on screen. But when they step off screen, their personal lives may be disastrous. If you are going to follow someone, focus on their talent, not their bad character or unacceptable behaviors.

Blessed is the person willing to act on their sudden desire to create something unique. Think of the movies, books, teachers, and friends that have affected you most deeply. They touched you because their creations were motivated by inspiration not desperation. The world is changed not by those who do what has been done before them, but by those who do what has been done inside them. Creative people have an endless resource of ideas. The problem a creator faces is not running out of material; it is what to do with the material knocking at the door of imagination.

Study your role models, accept the gifts they have given, and leave behind what does not serve you. Then you can say, “I stand on the shoulders of my ancestors’ tragedies and declare victory, and know that they are cheering me on.”

【推荐2】Scientists have created the world's first living, self-healing robots using stem cells (干细胞) from frogs. Named xenobots after the African clawed frog from which they take their stem cells, the ''machines'' are less than a millimeter wide — small enough to travel inside human bodies. They can walk and swim, survive for weeks without food, and work together in groups. ''These are entirely new life forms, '' said the University of Vermont, which conducted the research with Tufts University's Allen Discovery Center.

The researchers removed living stem cells from frog embryos (胚胎), and left them to hatch. Then, the cells were cut and reshaped into specific ''body forms'' designed by a supercomputer — forms ''never seen in nature''，according to a news release from the University of Vermont.

Xenobots even have regenerative abilities. When the scientists sliced into one robot, it healed by itself and kept moving. They don’t look like traditional robots - they have no shiny clothing or robotic arms. Instead, they look more like a tiny drop of moving pink flesh. The researchers say this is deliberate — this ''biological machine'' can achieve things typical robots of steel and plastic cannot. ''Traditional robots degrade over time and can produce harmful ecological and health side effects, '' researchers said in the study. ''As biological machines, xenobots are more environmentally friendly and safer for human health.''

According to the researchers, these robots could be used to clean up radioactive waste, collect microplastics in the oceans, or even carry medicine inside human bodies. Aside from these immediate practical tasks, they could also help researchers to learn more about cell biology - opening the doors to future advancement in human health and longevity. This sounds like something from a sci-fi movie. Some people even voiced their concern that humans might be taken control of by those xenobots. However, the researchers in the study say there is no need for alarm. They can't reproduce or evolve (进化).

【推荐3】Film has properties that set it apart from painting, sculpture, novels, and plays. It is also, in its most popular and powerful form, a story telling medium that shares many elements with the short story and the novel. And since film presents its stories in dramatic form, it has even more in common with the stage play: Both plays and movies act out or dramatize, show rather than tell, what happens.

Unlike the novel, short story, or play, however, film is not handy to study; it cannot be effectively frozen on the printed page. The novel and short story are relatively easy to study because they are written to be read. The stage play is slightly more difficult to study because it is written to be performed. But plays are printed, and because they rely heavily on the spoken word, imaginative readers can conjure up at least a pale imitation of the experience they might have been watching a performance on stage. This cannot be said of the screenplay, for a film depends greatly on visual and other nonvisual elements that are not easily expressed in writing. The screenplay requires so much “filling in” by our imagination that we cannot really approximate the experience of a film by reading a screenplay, and reading a screenplay is worthwhile only if we have already seen the film. Thus, most screenplays are published not to read but rather to be remembered.

Still, film should not be ignored because studying it requires extra effort. And the fact that we do not generally “read” films does not mean we should ignore the principles of literary or dramatic analysis when we see a film. Literature and films do share many elements and communicate many things in similar ways. Perceptive film analysis rests on the principles used in literary analysis, and if we apply what we have learned in the study of literature to our analysis of films, we will be far ahead of those who do not. Therefore, before we turn to the unique elements of film, we need to look into the elements that film shares with any good story.

Dividing film into its various elements for analysis is a somewhat artificial process, for the elements of any art form, never exist in isolation. It is impossible, for example, to isolate plot from character: Events influence people, and people influence events; the two are always closely interwoven in any fictional, dramatic, or cinematic work. Nevertheless, the analytical method uses such a fragmenting technique for ease and convenience. But it does so with the assumption that we can study these elements in isolation without losing sight of their interdependence or their relationship to the whole.