"Anyone who has never made a mistake has never tried anything new."
 Albert Einstein

"If I had to live my life again, I’d make the same mistakes, only sooner."
 Tallulah Bankhead

"He who never made a mistake never made a discovery."
 Samuel Smiles

"If you want to succeed, double your failure rate.
 Thomas Watson,IBM pioneer.
 Once a piano peddler, the asthmatic Watson turned IBM into a powerful company in the 1950s, controlling over 90% of all information processing machines of the time."

"Be stubborn, but not when life is trying to tell you the opposite of what you want to hear, otherwise don’t blame destiny or God for your own mistakes."
 3M

"Learn from the mistakes of others. You can’t live long enough to make them all yourself."
 Eleanor Roosevelt

"So go ahead and make mistakes. Make all you can. Because that’s where you will find success. On the far side of failure."
 Thomas J. Watson, Sr.

"If you can’t make a mistake, you can’t make anything." 
Marva Collins

"It is not the critic who counts: not the man who points out how the strong man stumbles or where the doer of deeds could have done better."

"You can practice shooting eight hours a day, but if your technique is wrong, then all you become is very good at shooting the wrong way."

"Get the fundamentals down and the level of everything you do will rise."
 Micheal Jordan

"Nobody makes a greater mistake than he who does nothing because he could only do a little."
 Edmund Burke.

"A life spent making mistakes is not only more honorable but more useful than a life spent doing nothing."
 Bernard Shaw

"Never mistake activity for achievement."
 John Wooden

"In any moment of decision the best thing you can do is the right thing, the next best thing is the wrong thing, and the worst thing you can do is nothing."
 Theodore Roosevelt

"The greatest mistake you can make in life is to be continually fearing you will make one."
 Elbert Hubbard