"Many such top performers overcame their average--or even below-average--intellects and nonexistent aptitudes to develop outstanding abilities in disciplines such as chess, music, business, and medicine. Examples of such remarkable transformations abound throughout history. Henry Ford failed in business several times and was flat broke five times before he founded the Ford Motor Company. In his youth, Thomas Edison's teachers told him he was "too stupid to learn anything." Beethoven was so awkward on the violin that his teachers believed him hopeless as a composer."