> To Chesterfield, singular focus was not merely a practical way to structure one’s time; it was a mark of intelligence. “This steady and undissipated attention

> To Chesterfield, singular focus was not merely a practical way to structure one’s time; it was a mark of intelligence. “This steady and undissipated attention to one object, is a sure mark of a superior genius [...] " Sounds reasonable. But also consider: > The test of a first rate intelligence is the ability to hold two opposed ideas in the mind at the same time, and still retain the ability to function. - F. Scott Fitzgerald, "The Crack-Up", Esquire Magazine (February 1936)