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.

The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools.

The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools.

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.

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.

Nothing is so difficult that diligence cannot master it.

Nothing is so difficult that diligence cannot master it.

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.

The secret of success is constancy of purpose.

The secret of success is constancy of purpose.

Diligence is a good thing, but taking things easy is much more restful

Diligence is a good thing, but taking things easy is much more restful

In a completely rational society, the best of us would be teachers and the rest of us would have to read more

In a completely rational society, the best of us would be teachers and the rest of us would have to settle for something else.