Craftsmanship is that without which inspiration is a mere reed shaken in the wind.

Craftsmanship is skill without imagination, giving us such things as wickerwork picnic baskets. Imagination without skill, on the other hand, gives us modern art.

Determination is vital to success — To him who is determined it remains only to act.

Determination is important — A man without determination is but an untempered sword.

Determination is important — a determined man can accomplish almost anything, except keeping his hair from falling out.

Determination is the truest kind of wisdom.

Diligence is powerful — Nothing is so difficult that diligence cannot master it.

Diligence is the mother of good fortune

Diligence is the mother of good luck.

Diligence is the virtue of the untalented.

Discipline is necessary for man, for he is by nature raw and wild.

Discipline is the soul of an army. It makes small numbers formidable; procures success to the weak and esteem to all.

Discipline is choosing between what you want now and what you want most.

Discipline is often praised by some folk, but nine times out of ten, this means they are prepared to administer it rather than submit to it.