The price of success is hard work, dedication to the job at hand, and the determination that whether we win or lose, we have applied the best of ourselves to the task at hand.
Desire is the key to motivation, but it's the determination and commitment to an unrelenting pursuit of your goal that will enable you to attain the success you seek.
The most essential factor is persistence?the determination never to allow your energy or enthusiasm to be dampened by the discouragement that must inevitably come.