13. Sometimes imagination is a more valuable asset than experience. People who lack experience are free to imagine what is possible and thus can approach a task without constraints of established habits and attitudes.
14. In any given field， the leading voices come from people who are motivated not by conviction but by the desire to present opinions and ideas that differ from those held by the majority.
15. It is always an individual who is the impetus for innovation； the details may be worked out by a team， but true innovation results from the enterprise and unique perception of an individual.
16. Success， whether academic or professional， involves an ability to survive in a new environment and——， eventually， ——to change it.
17. Most people choose a career on the basis of such pragmatic considerations as the needs of the economy， the relative ease of finding a job， and the salary they can expect to make. Hardly anyone is free to choose a career based on his or her natural talents or interest in a particular kind of work.
18. If a goal is worthy， then any means taken to attain it is justifiable.
19. People often look for similarities， even between very different things， and even when it is unhelpful or harmful to do so. Instead， a thing should be considered on its own terms， we should avoid the tendency to compare it to something else.
20. People are mistaken when they assume that the problems they confront are more complex and challenging than the problems， faced by their predecessors. Thus illusion is eventually dispelled with increased knowledge and experience.
21. Moderation in all things is ill-considered advice. Rather， one should say， 'Moderations is most things，' since many areas of human concern require or at least profit from intense focus.
22. Most people are taught that loyalty is a virtue. But loyalty-whether to one's friends， to one's school or place of employment， or to any institution-is all too often a destructive rather than a positive force.
四 政治类
1. It is often necessary， even desirable， for political leaders to withhold information from the public.
2. There are two types of laws： just and unjust. Every individual in a society has a responsibility to obey just laws and， even more importantly， to disobey and resist unjust laws.
3. To be an effective leader， a public official must maintain the highest ethical and moral standards.
4. It is impossible for an effective political leader to tell the truth all the time. Complete honesty is not a useful virtue for a politician.
5. Those who treat politics and morality as though they were separate realms fail to understand either the one or the other.
6. Laws should not be stationary and fixed. Instead， they should be flexible enough to take account of various circumstances， times， and places.
7. The goal of politics should not be the pursuit of an ideal， but rather the search for common ground and reasonable consensus.
五 科技类
1. The primary goal of technological advancement should be to increase people's efficiency so that everyone has more leisure time.
2. Money spent on research is almost always a good investment， even when the results of that research are controversial.
3. Humanity has made little real progress over the past century or so. Technological innovations have taken place， but the overall condition of humanity is no better. War， violence， and poverty are still with us. Technology cannot change the condition of humanity.
4. When research priorities are being set for science， education， or any other area， the most important question to consider is ： How many people's lives will be improved if the results are successful. 感谢您阅读《GRE英语作文分类题库 》一文，出国留学网(liuxue86.com)编辑部希望本文能帮助到您。