This can be answered briefly. It is smart to also tie in qualities that you feel you possess.
"I believe that the most important qualities in being a good teacher are patience, genuine interest and attention to detail. The reason being is that if we are patient with our students and show that we are also engaged in their learning, they will be more driven to do the same."
"I believe that a good teacher is patient, has excellent communication skills, and has a wide range of teaching tools to draw from. I'm a very compassionate person and I do communicate well, but I do know that I have many more years to grow before I can be considered an expert. So I'm constantly learning more about pedagogical methods and reading about teaching."