We must have heard an old allegory that the lowest piece of wood decides the volume of a bucket. It is a prime example to explain why faculty should spend time working outside the world of academic research. I fundamently agree with the speaker that it would improve the quality of instruction,
Above all, if a professor teaches only academic knowlege, students might loss their interests quickly. It is  too arduous to coverge one's attention all the time during almost an hour, so introducing anecdotes about courses contributes to attract students. When come to the structure of benzene, a story of a dream coming from Kekule,a famous German Chemist, is a proper example. There was no convincing description of the structure of beneze before the brith of the fantastic dream of Kekule. One afternoon, When Kekule was confused with that structure, he come into dream. In his dream, he found a snake nipping its tail. He immediatly weaked up and compared the structure of beneze to this snake. Through revising it several times, Kekule successed to depict this uncanny structure. These kinds of stody are easy to warm classes, and may enlighten students of even professors to earn some special ideas. 
On the other hand, it is indispensible for universities to combine academic world with reality. When considering reality, academic research would be aimed at human demands. If these researches fit human demands suitably, peolpe would invest these researches constantly to ensure headway of them. In addition, human demands, which equal human ideology to some degree, restrict progress of research in an appropriate direction. For example, drugs to which some people are rashly addicted should be forbidden to exploit, because they are regarded as a factor that does harm to public health and increases crime rate.
Furthermore, students can earn specific information in these classes involving real circumstances. Some students view finding a joy as the first goal after they graduate from university; Thus, specific information about occupation is significant for them. In my university, there are various lecture courses about enployment before senior students graduating. These lecture courses usually absorbed lots of students besides even numerous freshmans and sophomores. It implys the fact that students should improve themselves in order to face employment pressure, otherwise, they might find no job. 
Finally, undue emphasis on spending time on other aspects of professions distracts professors' attention from academic filed. We have only 24 hours a day, and one's vigor usually restrains what he or she wants to do with. If one wants two what he or she can not afford both, one might lose both. A story of greed is a good example of this case. In Afica,a pythen and an alligator usually encounter each other. A photographer has recorded a mounment. A pythen was died, for it underestimated the bulk of a alligator and engulfed the whole alligater. When it comes to the aguement above, professors should consider their voger and make a porper division between academic field and others.
In sum, it is necessary for professors to focus attention on their own academic world, but professors should also care other aspects of their professions.fauna