Worry is evidence of an ill-controlled brain; it is merely a stupid waste of time in unpleasantness. If men and women practiced mental calisthenics as they do physical calisthenics, they would purge their brains of this foolishness.
IDIOT, n. A member of a large and powerful tribe whose influence in human affairs has always been dominant and controlling. The Idiot's activity is not confined to any special field of thought or action, but "pervades and regulates the whole".
Question: Why are we Masters of our Fate, the captains of our souls? Because we have the power to control our thoughts, our attitudes. That is why many people live in the withering negative world. That is why many people live in the Positive Faith world. And you don't have to be a poet or a philosopher to know which is best.
In framing a government which is to be administered by men over men, the great difficulty lies in this: You must first enable the government to control the governed, and in the next place oblige it to control itself.