The difference between a novelist and a professor is that the former (most) uses his extraordinary creative genius to inspire people's passion by writing novels, while the latter (pay) more attention to academic research. A politician wants (found) his own theories and tries to come to power. A scientist hopes to make remarkable achievements and have more inventions and patents. Take Albert Einstein for example. He made numerous (contribute) to the world, the most well-known (be) the general theory of relativity and the famous formula E=mc2. He earned a doctorate in physics in 1905 and gradually became famous as the new Isaac Newton. Circumstances changed in 1933, Hitler came to power in Germany. Einstein, who was Jewish, found the doors of academic institutions (close) to him. As consequence, he had to flee Germany. He finally took up a position as a researcher at the Institute for Advanced Study in Princeton, USA. Einstein was not only a genius, but also a very gentle man. He had a thick moustache and long white hair. Despite his peculiarities, he (admire) by his friends and neighbours whom he encountered. It was on 18 April 1955 Einstein passed away, and the whole world mourned the great loss of a brilliant scientist.