Yoda was the ultimate Zen teacher. He never got mad, he always had just the right thing to say, he totally understood the forces governing the universe. I am not Yoda, but I do try channel him in the classroom.
Yoda knew that to do something worthwhile. you could not do it in half measure, or with fear in your heart. You must insteadbelieve in yourself with your full heart, banish self-doubt, and DO what you do best. May the Force be with you.