THE PEROSN WHO DOESN'T MISTAKES IS UNLIKELY TO MAKE ANYTHING.
Benjamin Franklin said, "I haven't failed, I've had 10000 ideas that didn't work."
At the last company I worked you would not be fired for being wrong, but you would be fired for not having initiative.
It had a positive attitude to mistakes. It was a great company.
Failure was a major contributor to its success.
"THERE IS NOTHING THAT IS MORE CERTAIN SIGN OF INSANITY THAN TO DO THE SAME THING OVER AND OVER AND EXPECT THE RESULTS TO BE DIFFERENT"
(in IT'S NOT HOW GOOD YOU ARE, IT'S HOW GOOD YOU WANT TO BE., de Paul Arden, ed. Phaidon)