He turned it down because of the low salary. The amount he was payed depended on the number of students who attended the lecturers. He thought it was hard to continue on as the lecturer so he filed a complaint to the university. He didn’t feel like anything was being done so he decided to study for another tour. He planned another study trip in advance to meet with some of the greatest mathematicians of his time. He was satisfied on this trip so he went back to the University of Konigsberg to work on discovering the solution to a mathematical problem on the rules of finite basis. After several months of hard work, he believed he had found a perfect solution to the problem. His solution didn’t impress some of the eminent mathematicians. Felix Klein was a prominent mathematician and when he went though his results, he was satisfied. This solution led him to the University of Gottingen for further education. After his success, David achieved great successes in his personal life too. He became an assistant professor at the University of Konigsberg after his friend Hurwitz became professor at the Swiss Federal Institute of Technology. A few weeks later, the German Mathematical Society appointed him to conduct a study of number