I agree with statement of that teacher should be evoluated, but i think not by the students. Grading should be provided by administration of that institutions or other independece organizations, in this case the objective evoluation might considered as non-subjective and in proper way including ethic way.

as Edward G. Rozycki (1999) claims that possibility to evoluate the teachers efficiency will negatively effects for both students academic proficience and Teacher work efficiency .

-by decreasing of respect attitude of students to teachers

-Low work quility because of low grades

Majority of students are not adults, consequently the grades which will be given to teacher will not be objective and accorded to their working quility.

One more advantages of cloning is returning of lost(dead) familie's member. By storing DNA of each member of family further if some of them would die member of family would be able to recover those one by cloning. But, of course, it is another issue how much it is right from ethical viewpoint.

But what if we would able to clone high qulified scientist as Einstein, Tesla, Zigmund Freid, identical clones of these people could continue their researches and brought to humanity great advantages.

Second cloned sheep after Dolly by Ian Wilmut, Keith Campbell , Rolsin university,

Of course war is bad, fighting and killing same organism it is not inteligent manner of developing, however humanity always were developing by push of war. Besides all i have mentoined, sometimes wars became the reason of organization or joining of nations into one country. As an example I may say about Russia before the occupation of Mongols. In 12th centure Russia was separeted into several conflicting principalities and when Mongols occupation became serious threat, principalities joined against it.

Most revolution technology discovers were made by force of war .Nuclear reaction was discovered during WWII by Opengamer inventing Atomic bomb, also first computer ENIAC was invested by US army. Further more, conquest of space began during cold war by rivalry of US and Soviet Union.

But it doesn't mean that if there won't be school person will not communicate with other people and won't have any friends. I know a lot of people who haven't been at school but they have friends and happiness in their life too.