Thomas Edison is renowned for inventing the commercially viable incandescent light bulb after over 10,000 failed attempts. Despite being told he was "too stupid to learn" as a child and being fired from two jobs for lack of productivity, Edison remained determined. When asked if he felt like a failure after 9,000 failed attempts, he replied that he now knew 9,000 ways not to make a light bulb and success was close. Edison went on to become one of the greatest innovators in history with over 1,000 patents to his name.