Prove it

The other day, while going through some papers left over from my last year of medical school, I found a single handwritten page of notes from a talk I was asked to give offering advice to the first year students. My big rhetorical flourish was a riff on the old cliche that so many people going into medicine have "something to prove." My point was that it's okay to have something to prove, as long as 1) you know what it is, and 2) you prove it.

I wonder if I proved anything?