Desire can be good; desire can be bad. It is entirely our call. If you are not sure, rely on great thinkers who have penned down a few words of inspiration for you.

John Adams
A desire to be observed, considered, esteemed, praised, beloved, and admired by his fellows is one of the earliest as well as the keenest dispositions discovered in the heart of man.

Unknown Author
A person shows what he is by what he does with what he has.

Andy Munthe
A shot glass of desire is greater than a pitcher of talent.

Henry Hazlitt
A strong passion for any object will ensure success, for the desire of the end will point out the means.

Willam Hazlitt
A strong passion... will insure success, for the desire of the end will point out the means.

Robert Browning
Ah, but a man's reach should exceed his grasp, or what's a heaven for?

Socrates
Be as you wish to seem.

Bill Cosby
Decide that you want it more than you are afraid of it.

Raymond Hollingwell
Desire creates the power.

Mario Andretti
Desire is the key to motivation, but it's the determination and commitment to an unrelenting pursuit of your goal - a commitment to excellence - that will enable you to attain the success you seek.