Instead of passively holding an investment, view it as an active choice to buy it at its current price every single day. The decision to sell should be based on a clear analysis of the incremental forward rate of return versus deploying that capital elsewhere.

A key error is conflating two distinct ideas: using dividends as a signal of a company's financial health (a rational total-return strategy) and the behavioral desire for the cash payout itself (an irrational preference). This muddled thinking leads investors to justify their preference for cash payouts with faulty logic about company quality, resulting in poor decisions.

Dividends do not inherently increase an investor's capital, as a dividend payment reduces the stock's price by the same amount. Total shareholder return is only achieved if the dividend is fully reinvested without taxes or fees; otherwise, only price appreciation grows the initial investment.

The biggest lesson Mohnish Pabrai has learned is to stop selling great businesses when they seem fairly or even slightly overvalued. The true intrinsic value of a rare compounder is unknowable, and the cost of exiting too early from one of the few big winners far outweighs the risk of holding through high valuations.

The rule for selling a stagnant stock after three years is less relevant for 'wonderful businesses' that constantly create value. Even if the stock price is flat, the underlying value has grown, improving the risk/reward. The rule is more critical for static-value investments where timing is everything.

The typical 'buy and hold forever' strategy is riskier than perceived because the median lifespan of a public company is just a decade. This high corporate mortality rate, driven by M&A and failure, underscores the need for investors to regularly reassess holdings rather than assume longevity.

A significant portion of investors view dividends as extra income separate from a stock's price. They don't grasp that the share price mechanically drops by the dividend amount, meaning they are not wealthier. This fundamental misunderstanding, the 'free dividends fallacy,' has major downstream consequences for their investment strategy and spending habits.

Investors who treat dividends as spendable "passive income" are essentially liquidating part of their portfolio. This prevents the powerful effect of compounding, significantly diminishing their total wealth over time compared to those who reinvest. This critical error often stems from the misconception that dividends are free money.

The idea of an infinite holding period is a myth, even for great companies. After Buffett bought Coca-Cola, it eventually traded at 58x earnings in 1998. By not selling, Berkshire endured a meager 4.5% annual return for the next 27 years, proving that even great businesses become sells at exorbitant prices.