I read this line in a weekly newsletter from User Interface Engineering, Failure Is Not an Option -- It's a Requirement.
Their articles are usually specific to usability testing, but this one has a broad message that's good for any organization and even for anyone personally.
It says that a company that embraces mistakes or failure is in the best position to learn and grow from them.
The article also has a list of common mistakes and provides you a chance to learn from others mistakes (novel concept).
A couple other good quotes:
"Good judgment comes from experience and experience comes from bad judgments."
"Experience is the name everyone gives their mistakes."