"If we know what that set point is, we can predict fairly accurately when you will be in flow, and it will be when your challenges are higher than average and skills are higher than average."

"And it has become a kind of a truism in the study of creativity that you can't be creating anything with less than 10 years of technical knowledge immersion in a particular field."

"And, in fact, you can find that the lack of basic resources, material resources, contributes to unhappiness, but the increase in material resources do not increase happiness."