The list is an excerpt from the book Creativity: Flow and the Psychology of Discovery and Invention written by Mihaly Csikszentmihalyi, (pronounced me-high chick-sent-me-high).
Creative people have a great deal of physical energy, but they’re also often quiet and at rest.
They work long hours, with great concentration, while projecting an aura of freshness and enthusiasm.
This suggests a superior physical endowment, a genetic advantage. Yet it is surprising how often individuals who in their seventies and eighties exude energy and health remember childhoods plagued by illness.
Flow: The Psychology of Optimal Experience is one of the best books ever by the way.