The most imprudent lending decisions occur during economic booms. Widespread optimism, complacency, and fear of missing out cause investors to lower their standards and overlook risks, sowing the seeds for future failures that are only revealed in a downturn.

While her peers used leverage, Green consistently stockpiled cash. During the panics of 1890 and 1907, when credit dried up and assets were cheap, her liquidity was her ultimate weapon. It enabled her to buy entire towns, save banks, and lend to powerful men on Wall Street, turning systemic crisis into personal opportunity.

Contrary to popular belief, successful entrepreneurs are not reckless risk-takers. They are experts at systematically eliminating risk. They validate demand before building, structure deals to minimize capital outlay (e.g., leasing planes), and enter markets with weak competition. Their goal is to win with the least possible exposure.

While Buffett's 22% annual returns are impressive, his fortune is primarily a result of starting at age 11 and continuing into his 90s. Had he followed a typical career timeline (age 25 to 65), his net worth would be millions, not billions, demonstrating that time is the most powerful force in compounding.

A near-bankruptcy experience instilled in Ed Stack an aversion to debt. This "paranoid" financial discipline, while criticized by Wall Street as suboptimal, became a key strategic advantage. By self-funding growth, Dick's maintained control and agility, allowing it to survive downturns that crushed its highly-leveraged competitors.

Widespread credit is the common accelerant in major financial crashes, from 1929's margin loans to 2008's subprime mortgages. This same leverage that fuels rapid growth is also the "match that lights the fire" for catastrophic downturns, with today's AI ecosystem showing similar signs.

Buffett's investment in Japanese trading houses was more than a value play; it was a masterclass in financial engineering. He financed the purchases by issuing yen-denominated debt at a near-zero interest rate. This created a carry trade where the substantial dividend income became almost pure, risk-mitigated profit.

Facing a massive tax bill on his appreciated Coca-Cola stock in the late 90s, Buffett used Berkshire's then-expensive stock as currency to merge with bond-heavy insurer General Re. This move diversified his portfolio into safer assets that rallied when the tech bubble burst, all without incurring taxes from a direct sale.

Warren Buffett's early partner, Rick Gurren, was as skilled as Buffett and Munger but wanted to get rich faster. He used leverage, got wiped out in a market downturn, and missed decades of compounding. This illustrates that patience and temperament are more critical components of long-term success than raw investing intellect.