I had a terrible education. I attended a school for emotionally disturbed teachers.

I had a terrible education. I attended a school for emotionally disturbed teachers.

Teachers open the door, but you must enter by yourself.

Teachers open the door, but you must enter by yourself.

Teaching is not a lost art, but the regard for it is a lost tradition.

Teaching is not a lost art, but the regard for it is a lost tradition.

The mediocre teacher tells. The good teacher explains. The superior teacher demonstrates. The great teacher inspires.

The mediocre teacher tells. The good teacher explains. The superior teacher demonstrates. The great teacher inspires.

The one exclusive sign of thorough knowledge is the power of teaching.

The one exclusive sign of thorough knowledge is the power of teaching.

No bubble is so iridescent or floats longer than that blown by the successful teacher.

No bubble is so iridescent or floats longer than that blown by the successful teacher.

I cannot teach anybody anything, I can only make them think.

I cannot teach anybody anything, I can only make them think.

Diligence is a great teacher.

Diligence is a great teacher.

Teaching is the greatest act of optimism.

Teaching is the greatest act of optimism.