Ng is one of those great profs that combine the rare gifts of being able to teach as well as be a leader in the field at the same time. I've had profs that are

Ng is one of those great profs that combine the rare gifts of being able to teach as well as be a leader in the field at the same time. I've had profs that are far less accomplished and far more arrogant. There's probably a correlation between those features, now that I think about it.