Few things are impossible to diligence and skill. Great works are performed not by strength, but perseverance.
Samuel Johnson (1709-1784) British author.
That which ordinary men are fit for, I am qualified in. and the best of me is diligence.
William Shakespeare (1564-1616) British poet and playwright.
Diligence is the mother of good fortune, and idleness, its opposite, never brought a man to the goal of any of his best wishes.
Miguel de Cervantes (1547-1616) Spanish novelist, dramatist and poet.
The expectations of life depend upon diligence; the mechanic that would perfect his work must first sharpen his tools.
Confucius (BC 551-BC 479) Chinese philosopher.
Diligence is the mother of good luck.
Benjamin Franklin (1706-1790) American statesman, scientist and philosopher.