They can take to a simpler life. It does not demand a bare and spartan existence. It means only that they can eliminate useless luxuries and excessive pleasures, stop buying what they need not buy and keep money they cannot afford to spend. By living a simpler life, by becoming more frugal and less spendthrift, they can cut down their wants, diminish their desires, lessen discontent, and perhaps even become happier. It will be easier to call their soul their own.
-- Notebooks Category 6: Emotions and Ethics > Chapter 4: Purify Passions > # 131