Excerpt: Most of us have genes that make us as hardy as dandelions: able to take root and survive almost anywhere. A few of us however are more like the orchid: fragile and fickle but capable of blooming spectacularly if given greenhouse care. So holds a provocative new theory of genetics which asserts that the very genes that give us the most trouble as a species causing behaviors that are self-destructive and antisocial also underlie humankind's phenomenal adaptability and evolutionary success. With a bad environment and poor parenting orchid children can end up depressed drug-addicted or in jail - but with the right environment and good parenting they can grow up to be society's most creative successful and happy people.