Teaching is the greatest act of optimism.

Teaching is the greatest act of optimism.

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

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

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

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

I like a teacher who gives you something to take home to think about besides homework.

I like a teacher who gives you something to take home to think about besides homework.

A great fortune depends on luck, a small one on diligence.

A great fortune depends on luck, a small one on diligence.

What we hope ever to do with ease, we must learn first to do with diligence.

What we hope ever to do with ease, we must learn first to do with diligence.

Those who know how to think need no teachers.

Those who know how to think need no teachers.

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.

Few things are impossible to diligence and skill ... Great works are performed, not by strength, but perseverance.

Few things are impossible to diligence and skill ... Great works are performed, not by strength, but perseverance.