Diligence, above all, is the ...

Diligence, above all, is the mother of good luck.
 Samuel Smiles

Quotes from the same author

One might almost fear," writes a thoughtful woman, "seeing how the women of to-day are lightly stirred up to run after some new fashion or faith, that heaven is not so near to them as it was to their mothers and grandmothers.
 Samuel Smiles
Necessity, oftener than facility, has been the mother of invention; and the most prolific school of all has been the school of difficulty.
 Samuel Smiles
Hope... is the companion of power, and the mother of success; for who so hopes has within him the gift of miracles.
 Samuel Smiles
Hope is like the sun, which, as we journey toward it, casts the shadow of our burden behind us.
 Samuel Smiles
With will one can do anything.
 Samuel Smiles