“I expected differences among children in how they coped with the difficulty, but I saw something I never expected.Confronted with the hard puzzles, one then-year-old boy pulled up his chair, rubbed his hands together, smacked his lips, and cried out, :I love a challenge!".I never though anyone loved failure.Not only weren't they discouraged by failure, they didn't even think they were failing. They though they were learning.”