This is just as interesting, from that same file of quotes from Dr. Charles Mayo. This one is from 1934, when jazz was not exactly a new phenomenon:
"Trying to be happy by means of jazz is about as vain and unsatisfactory as trying to make a meal out of pickles and pepper. It does not afford durable enjoyment. The very tempo of jazz is feverish, exciting and conducive to the wrong pace for American life. It is sadly out of date. We need a new tempo."