Good "Oxymorons" for Teachers

Wayne Cordiero is credited with these "oxymorons." I think there is a lot of wisdom here for those whom God has called to be teachers:

To stay current, stay ancient.
To move forward, remain anchored.
To serve more people, get alone more.
To accomplish more, do less.
To make a statement, be quiet and listen.
To be more fruitful, prune.