"It may be that when we no longer know what to do, we have come to our real work, and when we no longer know which way to go, we have begun our real journey."

"Courage is what it takes to stand up and speak; courage is also what it takes to sit down and listen."

"Success is not final, failure is not fatal: It is the courage to continue that counts."

"Success is stumbling from failure to failure with no loss of enthusiasm."