A good teacher is one who makes himself progressively unnecessary.
No man can be a good teacher unless he has feelings of warm affection toward his pupils and a genuine desire to impart to them what he believes to be of value.
One good teacher in a lifetime may sometimes change a delinquent into a solid citizen.
M. K. Soni
A good teacher is a good student first. By repeating his lessons, he acquires excellence.
Louis A. Berman
A good teacher is a master of simplification and an enemy of simplism.
A good teacher is like a candle: it consumes itself to light the way for others.
Experience is a good teacher, but she sends in terrific bills.
The fault of another is a good teacher.
William Arthur Ward
The mediocre teacher tells. The good teacher explains. The superior teacher demonstrates. The great teacher inspires.