Some of the best lessons we ever learn are learned from past mistakes. The error of the past is the wisdom and success o…

— Dr. Dale Turner

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

— Jonas Salk

Success does not consist in never making mistakes but in never making the same one a second time.

— George Bernard Shaw

The future belongs to those who see possibilities before they become obvious. Great people are created by great mistakes…

— Elmer Clark

The successful man will profit from his mistakes and try again in a different way.

— Dale Carnegie

Failure is instructive. The person who really thinks, learns just as much from his failures as he does from his successe…

— John Dewey