"The truth is, as I have said, that in this sense the two qualities of fun and seriousness have nothing whatever to do with each other, they are no more comparable than black and triangular. Mr. Bernard Shaw is funny and sincere. Mr. George Robey is funny and not sincere. Mr. McCabe is sincere and not funny. The average Cabinet Minister is not sincere and not funny."
January 1, 1970
https://en.wikiquote.org/wiki/Heretics_(book)