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.

A master can tell you what he expects of you. A teacher, though, awakens your own expectations.

A master can tell you what he expects of you. A teacher, though, awakens your own expectations.

A teacher affects eternity; he can never tell where his influence stops.

A teacher affects eternity; he can never tell where his influence stops.

Your best teacher is your last mistake.

Your best teacher is your last mistake.

Those who know how to think need no teachers.

Those who know how to think need no teachers.

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

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

Experience is a good teacher, but she sends in terrific bills.

Experience is a good teacher, but she sends in terrific bills.

Teaching is the greatest act of optimism.

Teaching is the greatest act of optimism.

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.