Do Be, Doobie, Do!

When a student fails an audition, his teacher asks, "Have I failed?" Tony Morris of Classical Guitar Alive! responded on rec.music.classical.guitar:

Nobody failed at anything. You only fail when you quit. He needs to overcome his nerves, and the way to do it is for him to get his ass back on the horse and keep performing. He needs to regularly play his program at every hospital and old folks home within a 25 mile radius. And act confident. Acting is being.

To which I can't resist adding Vonnegut's comparative analysis of famous existential thinkers:

"To be is to do." -Socrates
"To do is to be." -Sartre
"Do be do be do." -Sinatra