The first year of his professorship went poorly, he could not relate to the students, could not explain complicated physical problems, and spoke unintelligibly and quietly. After a few months of lecturing, he was left with only one loyal listener.
However, he was not discouraged, he worked on himself, and in the years that followed he became a very popular professor, known to his students as "Oppie," and his most loyal listeners as "Oppie's boys".
