Bing Crosby said that Armstrong is "the beginning and the end of music in America," and he wasn't far wrong.

One of the things I always underscore when I teach criticism is that young critics, or would be critics, frequently have this illusion that if they write about music they're somehow part of music, or if they write about movies they're part of movies, or of they write about theater they're part of theater, or write about literature. Writing is a part of literature, we belong the species of literature. If you add all the music reviews together that have ever been written, they don't create two notes of music.

Jazz is for joy. It's for euphoria, it's for emotion, and anguish, and excitement, and all of the joys that great art can produce, and if it loses that, then it's lost everything.

I'm a critic. That means you are a writer. So, yes, you have to make yourself an authority on whatever subject it's going to be. Music, movies, literature, whatever it's going to be, but what you really want to do is learn your trade by reading other writers. I think you have to read veraciously, especially people who have done what you have done to see how it's been done in the past; what works, what doesn't work.

When I teach criticism, the first thing I say, and this sometimes pisses off younger - I mean, students, is that, opinions are the least part of criticism. We've all had the experience of going with a friend to a movie or a concert and you leave the theater and one of you loved it and one of you hated it, and that doesn't mean that one of you is an idiot. That's the way things work.

Humility is a very important trait in a critic.

Nobody knows where jazz is going, because nobody has ever known where jazz was going. I mean, you couldn't possibly predict the Swing Era from the '20's or bebop from the Swing Era or Avant-garde from Bebop, or Effusion, or on and on and on. So, we don't really know where it's going.