"John Hunter used to remark that the art of surgery would not advance until professional men had the courage to publish their failures as well as their successes." "Watt the engineer said, of all things most wanted in mechanical engineering was a history of failures: 'We want,' he said, 'a book of blots.'" "I thank God I was not made a dexterous manipulator, for the most important of my discoveries have been suggested to me by failures."

— In our words · Source: Self-Help (Samuel Smiles)