Albert got a medical certificate from Dr. Ernest Weil. But Yuri told him to get a reference in writing from Mr. Koch. Mr. Koch was Albert’s Mathematics teacher. He had a very good opinion about Albert. He was very much impressed by Albert’s knowledge of his subject. He was different from other teachers. He was very cooperative and helpful. So Albert met Mr. Koch. He willingly gave Albert the reference that he wanted. Mr. Koch asked Albert if he should write that he was not able to teach him anymore. Actually, Albert was so intelligent. He admitted that it was the only truth. Mr. Koch wrote that Albert was only wasting his time in his class. In fact, Albert would soon be able to teach him. Albert tried to be modest. He told Mr. Koch that he enjoyed his classes. In a way, Mr. Koch was the only good teacher who never pretended to be what he was not.