Yoda

Yoda is not just the greatest Jedi Master of the Force, personally I think he is also the greatest teacher! Many of his wisdom is applicable to teaching, learning and life. :)

Try not. Do or do not. There is no try.
You must unlearn what you have learned. 
Always pass on what you have learned. 
Train yourself to let of everything you fear to lose.
Many of the truths that we cling to depend on our point of view.  
In a dark place we find ourselves, and a little more knowledge lights our way. 
Luke: I don't believe it. Yoda: That is why you fail. 
If no mistake have you made, yet losing you are ... a different game you should play. 

Fear is the path to the dark side. Fear leads to anger. Anger leads to hate. Hate leads to suffering. 
Named must your fear be before banish it you can. 
When you look at the dark side, careful you must be. For the dark side looks back.
To be Jedi is to face the truth, and choose. Give off light, or darkness, Padawan. Be a candle, or the night.

Guess where Yoda is :)