When you see yourself doing something badly and nobody's bothering to tell you anymore, that's a very bad place to be. Your critics are the ones telling you they still love you and care.
Randy PauschI’d compare college tuition to paying for a personal trainer at an athletic club. We professors play the roles of trainers, giving people access to the equipment (books, labs, our expertise) and after that, it is our job to be demanding.
Randy Pausch