The late Berkshire Hathaway Vice Chairman Charlie Munger, a close associate of Warren Buffett, once shared his "iron rule of life" that "everybody struggles," emphasizing the importance of "soldiering through" difficult times without quitting. This philosophy, rooted in Munger's personal experiences of loss and financial hardship, is now being applied to personal finance amid current economic uncertainties.

Analysis from Capital Group suggests that S&P 500 investors holding for less than a year face a 26% chance of negative returns, which drops to 6% over a 10-year period. Similarly, Schroders' data indicates that large-cap stocks have a 70% chance of outpacing inflation annually, rising to 87% over 10 years and 100% over 20 years. These findings support Munger's principle that perseverance in investment can lead to long-term gains, even during volatility.