Absolute truths are rare in complex systems like markets. A more pragmatic approach is to find guiding principles—like "buy assets for less than they're worth"—that are generally effective over the long term, even if they underperform in specific periods. This framework balances conviction with flexibility.
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Graham adopted philosopher Baruch Spinoza's idea of viewing things "in the aspect of eternity" to teach investors to focus on long-term intrinsic value rather than getting caught up in the market's daily emotional swings, promoting a disciplined, long-term perspective.
This "via negativa" approach, inspired by Sun Tzu and Charlie Munger, posits that the easiest way to improve returns is by systematically avoiding common mistakes. Instead of trying to be brilliant, investors should focus on not doing "dumb stuff," as it's easier to identify what leads to failure than what guarantees success.
Allocate more capital to businesses with a highly predictable future (a narrow "cone of uncertainty"), like Costco. Less predictable, high-upside bets should be smaller positions, as their future has a wider range of possible outcomes. Conviction and certainty should drive allocation size.
Bruce Lee’s philosophy to be “formless, shapeless, like water” is a powerful model for investors. It warns against rigid adherence to a single dogma, like old-school value investing, and instead encourages adapting one's strategy to fit the unique conditions of the current market environment.
In 2008, Howard Marks invested billions with conviction while markets crashed, yet he wasn't certain of the outcome. He held the paradox of needing to act decisively against the crowd while simultaneously accepting the real possibility of being wrong. This mental balance is crucial for high-stakes decisions.
Howard Marks offers a crucial corollary to Einstein's famous quote. For investors, the real insanity is failing to recognize a paradigm shift. Applying strategies that worked during 40 years of falling interest rates to the current, different environment is a recipe for failure. The context determines the outcome.
Moving from science to investing requires a critical mindset shift. Science seeks objective, repeatable truths, while investing involves making judgments about an unknowable future. Successful investors must use quantitative models as guides for judgment, not as sources of definitive answers.
Quoting G.K. Chesterton, Antti Ilmanen highlights that markets are "nearly reasonable, but not quite." This creates a trap for purely logical investors, as the market's perceived precision is obvious, but its underlying randomness is hidden. This underscores the need for deep humility when forecasting financial markets.
The best investment deals are not deeply discounted, low-quality items like "unsellable teal crocodile loafers." Instead, they are the rare, high-quality assets that seldom come on sale. For investors, the key is to have the conviction and preparedness to act decisively when these infrequent opportunities appear.
The effort to consistently make small, correct short-term trades is immense and error-prone. A better strategy is focusing on finding a few exceptional businesses that compound value at high rates for years, effectively doing the hard work on your behalf.
