Quotable quotes in education

Like the words quoted by my principal during morning assembly:

"The mediocre student listens
The good student listens and understands
The superior student listens, understands and asks questions
The great student TEACHES the TEACHER!"

"The mediocre teacher tells
The good teacher explains
The superior teacher demonstrates
The great teacher INSPIRES!"

Lots and lots and lots of work piling up. Need to get all of them done by weekend. What a hectic week!