He has won several awards for expository writing, and in 1993, he received a Distinguished Teacher award from the Mathematical Association of America . I am proud to be a teacher. Teaching is an ephemeral subject. It is like playing the violin. The piece is over, and it's gone.
Writing is permanent.
It is generally regarded as difficult to explain mathematics to nonspecialists. I give talks on problems, not in detail, but at a level that has a chance of reaching them. Preparation is essential. Every single word that I publish I write at least six times. In that first 1942, von Neumann-inspired book, Halmos established a style and perspective that have become signatures of his celebrated career.