If you're a student of philosophy, you will eventually get yourself in trouble by saying "Oh, I'm a philosopher." Not only will your parents immediately feel a great sense of shame, no matter how far away from you they are, but also the person you are speaking to will think that you consider yourself the equal of Plato, Hume and Nietzsche. In the ordinary way of speaking, 'philosopher' and 'good philosopher' are nearly synonymous terms, in the way that 'Olympic athlete' and 'talented Olympic athlete' are. But really, 'philosopher' is more like 'plumber'. Not everyone is a plumber, and it takes a certain sort of skill that most people lack. But there's still such a thing a bad plumber.
Well, Mohammed Taheri-azar is just as much a terrorist as he is a philosopher. I just wouldn't want to hire him in either capacity.