Teacher must be a damn good learner

It came to my mind yesterday, after a class which didn't go very well, that I will possibly never be the teacher I want to be. Why? Precisely because I always want to be the best. After a little thought, however, I realized that if I fail to give myself time, be patient and learn, how can I expect my students will hang out there for long enough and persevere? Being the distinguished and foremost learner of the class isn't it my utmost responsibility to lead by example?

If I fail as a learner I inevitably fail as a teacher, too.