Before Jonas Salk developed a vaccine for polio that finally worked, he tried two hundred unsuccessful ones. Somebody as…

— Jonas Salk

Ambition is success's best friend. % AF Don't let your success of today lay you into complacency for tomorrow. For that …

— Og Mandino

Success is going from failure to failure without a loss of enthusiasm.

— Winston Churchill

Hope sees the invisible, feels the intangible, and achieves the impossible.

— Charles Caleb Colton

Many of life’s failures are people who did not realize how close they were to success when they gave up.

— Thomas A. Edison

If I had to select one quality and one personal characteristic that I regard as being most highly correlated with succes…

— Richard M. Devos