A good teacher learns as much from his or her students as they teach and Qui-Gon admitted to Obi-Wan that his Padawan would surpass him, and he did this without jealousy anger, ego.
A Jedi practitioner going from padawan learner to master during the course of all six films, Obi-Wan Kenobi, or Ben Kenobi, is one of a handful of characters who actively inhabit the Star Wars story from beginning to end.