“He who never makes a mistake never makes anything. It's part of learning the job.”
“It is only those who never do anything who never make mistakes.”
“The only man who never makes mistakes is the man who never does anything.”
“Wise is the one who learns from another´s mistakes. Less wise is the one who learns only from his own mistakes. The fool keeps making the same mistakes again and again and never learns from them.”
“In school we learn that mistakes are bad, and we are punished for making them. Yet, if you look at the way humans are designed to learn, we learn by making mistakes. We learn to walk by falling down. If we never fell down, we would never walk.”
“Never interrupt someone who is making a mistake.”