Yes, you're are right -- my job includes helping students get A's in challenging classes. Even if I do a wonderful job at helping them "master the material," pass all the tests, "learn how to learn and think for themselves," and get A's in all their classes, I am still only doing half of my job.
The other half of my job is just as important, and it starts with preparation, and ONGOING learning on my part. There is always improvement in technology, and there are always new methods of teaching being developed. I must constantly be improving my teaching and communication skills, in order to help my students maximize their own potential. So in a nutshell, it's not just about students learning what they need to learn. It's also about me learning as much as I can to help me do a great job at instructing them. It's all about the student, but it has to start with me doing my part. I always like to learn new things, and I hope to help cultivate that attitude--the love of learning--in each student that I work with.