When I was young I observed that nine out of every ten things I did were failures, so I did read more

When I was young I observed that nine out of every ten things I did were failures, so I did ten times more work.

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.

Teaching is the greatest act of optimism.

Teaching is the greatest act of optimism.

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.

What saves a man is to take a step. Then another step.

What saves a man is to take a step. Then another step.

He who labors diligently need never despair; for all things are accomplished by diligence and labor.

He who labors diligently need never despair; for all things are accomplished by diligence and labor.

Those who know how to think need no teachers.

Those who know how to think need no teachers.

Your best teacher is your last mistake.

Your best teacher is your last mistake.