The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools.
By diligence and patience, the mouse bit in two the cable.
Great works are performed, not by strength, but by perseverance; yonder palace was raised by single stones, yet you see its height and spaciousness. He that shall walk with vigor three hours a day, will pass in seven years a space equal to the circumference of the globe.
He who labors diligently need never despair; for all things are accomplished by diligence and labor.
When I was young I observed that nine out of every ten things I did were failures, so I did ten times more work.